Solved Past Paper

ETEA MDCAT Past Paper 2023

Practice and review ETEA MDCAT Past Paper 2023 with verified questions, correct answer keys, and detailed solutions.

Total Questions 200 Qs
Duration Limit 210 Min
Negative Mark 0.00
Attempt Count 0

Solved Questions & Explanations

200 questions with verified answers and explanations

1

Consider the reaction below. If 5 moles each of hydrogen and oxygen are reacted to form water, which statement is correct? 2H₂ + O₂ → 2H₂O

Financial Action Task Force (FATF) PYQ
a H₂ is the excess reagent
b O₂ is the limiting reagent
c H₂ is the limiting reagent
d The reaction has no limiting reagent
2

Oxygen can be prepared by the decomposition of potassium chlorate (KClO₃). How many moles of oxygen (O₂) can be formed by taking 12 moles of potassium chlorate (KClO₃) according to the following equation? 2KClO₃ + heat → 2KCl + 3O₂

Guinness World Records (General Knowledge Focus) PYQ
a 12 moles of oxygen
b 15 moles of oxygen
c 18 moles of oxygen
d 21 moles of oxygen
3

117 g of NaCl have:

Guinness World Records (General Knowledge Focus) PYQ
a 1.204 × 10²⁴ formula units of NaCl
b 12.04 × 10²² formula units of NaCl
c 1.204 × 10²³ molecules of NaCl
d 6.023 × 10²³ molecules of NaCl
4

The number of orientations of a sub-shell for which n = 4 and l = 3 will be:

Guinness World Records (General Knowledge Focus) PYQ
a 1
b 3
c 5
d 7
5

Photon of the lowest wavelength is related to:

Highest and Lowest Points PYQ
a Pfund series
b Balmer series
c Bracket series
d Paschen series
6

The maximum e/m ratio for positive rays is obtained when the discharge tube contains:

Guinness World Records (General Knowledge Focus) PYQ
a He
b N₂
c Ne
d H₂
7

1 atm of pressure is equal to all of the following except:

Guinness World Records (General Knowledge Focus) PYQ
a 760 cm Hg
b 760 mm Hg
c 101325 Pa
d 760 torr
8

The volume of a given mass of an ideal gas at certain pressure is x at constant temperature. What will be its volume when the pressure is reduced to half:

Weather, Atmosphere and Temperature PYQ
a x/2
b 2x
c 4x
d 4/x
9

The volume occupied by 3.2 g of oxygen gas at S.T.P. is:

Guinness World Records (General Knowledge Focus) PYQ
a 1.12 dm³
b 2.24 dm³
c 22.4 dm³
d 24 dm³
10

All of the following crystal systems have β = γ = 90° except:

Central American Integration System (SICA) PYQ
a Cubic
b Orthorhombic
c Tetragonal
d Rhombohedral
11

Compound having lowest boiling point is:

Highest and Lowest Points PYQ
a Carbon tetrachloride
b Ethyl alcohol
c Benzene
d Acetic acid
12

Which of the following can form Hydrogen bonding with each other?

Guinness World Records (General Knowledge Focus) PYQ
a Methanal & Ethanal
b Propanone & ethyl methyl ketone
c Acetone & Acetaldehyde
d 3° Amine & H₂O
13

Identify the molecular formula of Furan:

Guinness World Records (General Knowledge Focus) PYQ
a C₄H₄O
b C₆H₅O
c C₄H₂O
d C₄H₆O
14

Haber's process is used for the synthesis of ammonia. The optimum temperature for the Haber process is:

Weather, Atmosphere and Temperature PYQ
a 35 - 50 °C
b 130 - 150 °C
c 400 - 450 °C
d 500 - 600 °C
15

If ionic product is less than Ksp then:

Guinness World Records (General Knowledge Focus) PYQ
a Solution will be saturated
b Precipitation will occur
c Solution will be super saturated
d No precipitation will occur
16

For Δn = 0:

Guinness World Records (General Knowledge Focus) PYQ
a Kp = Kc
b Kp ≠ Kc
c Kp > Kc
d Kp < Kc
17

Reaction that follows third order kinetics is:

Financial Action Task Force (FATF) PYQ
a Decomposition of nitrogen dioxide
b Decomposition of hydrogen iodide
c Gas phase oxidation of nitric oxide
d Formation of hydrogen iodide
18

As compared to exothermic reaction, formation of activated complex in endothermic reaction requires:

Financial Action Task Force (FATF) PYQ
a Greater Ea
b Smaller Ea
c Equal Ea
d No Ea
19

SI unit of specific heat capacity is:

Guinness World Records (General Knowledge Focus) PYQ
a J g⁻¹ K⁻¹
b J K⁻¹
c J mol⁻¹ K⁻¹
d kJ/mol
20

Processes involving solids and liquids have their:

Guinness World Records (General Knowledge Focus) PYQ
a ΔH = ΔE + PΔV
b ΔH = PΔV
c ΔH = ΔE
d ΔH = 0
21

In redox reaction of SO₂ with KMnO₄ in acidic medium:

Financial Action Task Force (FATF) PYQ
a SO₂ oxidizes KMnO₄
b SO₂ reduces KMnO₄
c KMnO₄ is inert in acidic medium
d SO₂ can't undergo redox reaction
22

Zinc displaces copper from its solution because:

United Nations High Commissioner for Refugees (UNHCR) PYQ
a Zinc has higher reduction potential than copper
b Atomic no. of zinc is higher than that of copper
c Zinc is more soluble
d Zinc has smaller reduction potential than copper
23

The molecular shape of a molecule with three bonded atoms and one lone pair electron on the central atom will be:

Central American Integration System (SICA) PYQ
a Trigonal planar
b Tetrahedral
c Trigonal pyramidal
d Linear
24

Molecule having the highest bond-energy (Experimentally) is:

Highest and Lowest Points PYQ
a HCl
b HF
c HBr
d HI
25

The bond length between double bonded carbon atoms is:

Guinness World Records (General Knowledge Focus) PYQ
a 1.34 Å
b 1.10 Å
c 1.54 Å
d 1.82 Å
26

Choose the element that forms normal oxide only:

Guinness World Records (General Knowledge Focus) PYQ
a Li
b Na
c K
d Rb
27

Element whose salts do not impart color to flame test is:

World Leaders in News PYQ
a Be
b Cs
c Ca
d K
28

Indicate superoxide in the following:

Guinness World Records (General Knowledge Focus) PYQ
a CaO
b BaO₂
c Na₂O₂
d RbO₂
29

Which one of the following is covalent in nature?

Guinness World Records (General Knowledge Focus) PYQ
a Mg₃N₂
b Be₃N₂
c Cd₃N₂
d Ba₃N₂
30

Which one has one unpaired electron in the valence shell?

Guinness World Records (General Knowledge Focus) PYQ
a Zn⁺
b Cu⁺
c Ti⁺
d Fe⁺
31

The oxidation number of Cobalt in the given coordination complex is: [Co(H₂NCH₂CH₂NH₂)₂]₂(SO₄)₃

United Nations Office for the Coordination of Humanitarian Affairs (OCHA) PYQ
a II
b III
c IV
d VI
32

Pyrole belongs to which class of compounds:

Guinness World Records (General Knowledge Focus) PYQ
a Hydrocarbons
b Homocyclic
c Alicyclic
d Heterocyclic
33

Ethyl alcohol in the presence of H₂SO₄ at 170°C produces:

Guinness World Records (General Knowledge Focus) PYQ
a Ether
b Ethene
c Ester
d Ethane
34

Lindlar's catalyst is used in hydrogenation of alkyne:

International Atomic Energy Agency (IAEA) PYQ
a To increase activation energy
b To enhance hydrogenation of alkene
c To prevent hydrogenation of alkene
d To start polymerization reaction
35

Which one of the following is not Meta directing group?

Group of Seven (G7) PYQ
a -COR
b -NO₂
c -CHO
d -NR₂
36

Benzene-1,3-diol is also known as:

Guinness World Records (General Knowledge Focus) PYQ
a Catechol
b Resorcinol
c Hydroquinone
d O-cresol
37

Identify the electrophile called as acylium ion:

Guinness World Records (General Knowledge Focus) PYQ
a R₂N⁺
b RCO⁺
c RCOO⁺
d RNO⁺
38

Among the following hydrocarbons which one has acidic hydrogen?

Guinness World Records (General Knowledge Focus) PYQ
a C₂H₆
b C₂H₄
c C₂H₂
d C₆H₆
39

Greater number of alkyl groups on substrate favours:

Financial Action Task Force (FATF) PYQ
a Substitution reaction
b Elimination reaction
c Oxidation reaction
d Free radical reaction
40

S_N1 reactions mostly result in partial racemization. In partial racemization there is:

Most Repeated GK MCQs from Past Papers PYQ
a Inversion only
b Retention only
c Equal inversion and retention
d More inversion than retention
41

Which of the following involve the same steps?

Guinness World Records (General Knowledge Focus) PYQ
a E1 and E2
b E1 and S_N1
c S_N1 and S_N2
d E2 and S_N1
42

The correct sequence of electronic configuration is:

Guinness World Records (General Knowledge Focus) PYQ
a 4p 5s 4d 5p 6s 4f 5d
b 4p 4s 4d 5p 5s 5f 6d
c 4p 4s 4d 5p 5s 4f 5d
d 4p 3s 4d 5p 6s 4f 5d
43

When phenol reacts with excess of bromine in aqueous solution it results in the formation of:

Guinness World Records (General Knowledge Focus) PYQ
a Meta-bromophenol
b Ortho/para bromophenol
c 2,4,6-Tribromophenol
d 3,5-Dibromophenol
44

Propylene glycol and trimethylene glycol are:

Group of Seven (G7) PYQ
a Functional group Isomers
b Metamers
c Position Isomers
d Tautomers
45

The reduction of Aldehydes and Ketones to alkanes in the presence of zinc amalgam and HCl is called:

Guinness World Records (General Knowledge Focus) PYQ
a Clemmenson reduction
b Williamson's synthesis
c Wolf-Kishner reduction
d Dow process
46

Aldehyde and Ketone on reaction with hydroxylamine form:

Financial Action Task Force (FATF) PYQ
a Hydrazine
b Hydrazone
c Oxime
d Imine
47

Fehling's solution works on the principle of redox reaction which results in:

Financial Action Task Force (FATF) PYQ
a Oxidation of Copper (I)
b Reduction of Aldehydes
c Oxidation of Aldehyde
d Oxidation of Ketone
48

In conversion of acid halides to ester, pyridine is used to:

Financial Action Task Force (FATF) PYQ
a Stabilize acid halides
b Consume HCl formed in the reaction
c Dehydrogenate acid halides
d Dehydrate alcohol
49

Number of carbon atoms in valeric acid is:

Guinness World Records (General Knowledge Focus) PYQ
a 4
b 5
c 6
d 7
50

The IUPAC name of formyl chloride is:

Guinness World Records (General Knowledge Focus) PYQ
a Chloro methanolic acid
b Chloro methane
c Methanoyl chloride
d Chloro methanoate
51

The inhibition, in which the inhibitor does not combine directly with the enzyme but binds to the enzyme substrate complex is called:

Guinness World Records (General Knowledge Focus) PYQ
a Reversible inhibition
b Competitive inhibition
c Non-competitive inhibition
d Uncompetitive inhibition
52

Trypsinogen can be activated by the action of:

Financial Action Task Force (FATF) PYQ
a Amylase
b HCl
c Glucokinase
d Enterokinase
53

Crystal having orthorhombic crystal system is:

Central American Integration System (SICA) PYQ
a PbCrO₄
b BaSO₄
c ZnO
d K₂Cr₂O₇
54

Carbonyl functional group is present in:

Group of Seven (G7) PYQ
a Ether
b Aldehyde
c Carboxylic acid
d Ester
55

Statements:Some teachers are students.All students are girls. No student is a boy.Conclusions:I. Some teachers are boys.II. Some girls are teachers.III. Some girls are students.

Guinness World Records (General Knowledge Focus) PYQ
a Only I follows
b Only I, II and III follow
c Only II follows
d Only II and III follow
56

Complete the following series: KCD,LEF, MGH, ___, OKL.

Guinness World Records (General Knowledge Focus) PYQ
a NOM
b PJI
c NJI
d NIJ
57

Read the following statements and decide about the arguments. Statement:Does Pakistan need so many plans for development? Arguments:I. Yes. Nothing can be achieved without proper planning.II. No. Too much time, money and energy is wasted on planning.

Time Zones and Latitude–Longitude PYQ
a Only I is True
b Only II is True
c Either I or II is True
d Either I or II
58

Methyl tetrachloride (MTC) is a chemical found in some pesticides, glues, and sealants. Exposure to MTC can cause people to develop asthma. In order to lower the nation's asthma rate, the government plans to ban all products containing MTC. The government's plan to lower the nation's asthma rate relies on which of the following assumptions?

Commonwealth Heads of Government Meeting (CHOGM) PYQ
a Exposure to MTC is responsible for no less than half of the nation's asthma cases
b Products containing MTC are not necessary to the prosperity of the country's economy
c Asthma has reached epidemic proportions
d MTC products are helpful for asthma
59

Statements:I.Importance of yoga and exercise is being realized by all sections of the society.II. There is an increasing awareness about health in the society particularly among middle ages group of people.

Global Health & Medical Advances PYQ
a Statement I is the cause and statement II is its effect.
b Statement II is the cause and statement I is its effect.
c Both the statements I and II are independent causes.
d Both the statements I and II are effects of independent causes.
60

Statement: The rates of interest on Post Office recurring deposit accounts have been increased with effect from 2nd March. This has been done to attract more deposits. Course of ActionI-Efforts should also be made to make the public aware about this increase in the rate of interest.II-If the deposits don't increase in next six months, the rate of interest should be further increased.

Post Cold War World PYQ
a Only conclusion I follows
b Only conclusion II follows
c Neither I nor II follows
d Both conclusions I and II follows
61

Equal forces F act on isolated bodies A and B. The mass of B is 1/5 times that of A. The magnitude of the acceleration of A is:

Time Zones and Latitude–Longitude PYQ
a 1/5 times that of B
b 1/3 times that of B
c the same as B
d five times that of B
62

A body is moved through a displacement of 15m towards North, the total displacement will be zero when body covered the same displacement towards:

North Atlantic Treaty Organization (NATO) PYQ
a North
b South
c West
d East
63

When the range of a projectile is equal to one fourth of the height then which one is true:

Guinness World Records (General Knowledge Focus) PYQ
a Tanθ = 10
b Tanθ = 12
c Tanθ = 16
d Tanθ = 1
64

A body is moving with momentum of 100 kg m/s. What is the magnitude of force required to stop this body in 25 sec?

Financial Action Task Force (FATF) PYQ
a 4 N
b 25 N
c 100 N
d 2500 N
65

Doubling the initial velocity of a projectile while keeping all other parameters the same, the height reached by the projectile increases by:

Time Zones and Latitude–Longitude PYQ
a two times
b three times
c four times
d remains the same
66

Neglecting the effect of air resistance how long a stone takes to dropped off a 125m high building lands on the ground, take g=10m/s²:

United Nations High Commissioner for Refugees (UNHCR) PYQ
a 3 sec
b 4 sec
c 5 sec
d 18 sec
67

The weight of a body is 120 N and it is lifted to height 10 m, work done on the body is:

Guinness World Records (General Knowledge Focus) PYQ
a 120 J
b 100 J
c 1000 J
d 1200 J
68

A 200 N force acts on a 8 kg crate that starts from rest. At the instant the object has gone 2m, the rate at which the force is doing work is:

Financial Action Task Force (FATF) PYQ
a 2.5W
b 25W
c 75W
d 2000W
69

Which of the following bodies has the largest kinetic energy?

Geographic Extremes (Largest, Smallest, Deepest) PYQ
a Mass 3M and speed V
b Mass 3M and speed 2V
c Mass 3M and speed 3V
d Mass M and speed 4V
70

A 2kg object is released from rest 8 m above the surface of Earth. During the fall work done against air resistance is 60 J. Just before it hits the surface its speed is: (take g=10m/sec²)

Guinness World Records (General Knowledge Focus) PYQ
a 10m/sec
b 36 m/sec
c 40 m/sec
d 45 m/sec
71

The speedometer of a car shows 36 km/hr. The angular speed of the wheels having 0.5 m radius is:

Guinness World Records (General Knowledge Focus) PYQ
a 5 rad/sec
b 10 rad/sec
c 15 rad/sec
d 20 rad/sec
72

The angular speed in radian/hour for daily rotation of our earth is?

Guinness World Records (General Knowledge Focus) PYQ
a π/12
b 12π
c 24π
d π/24
73

A fly wheel rotates at constant speed of 600 rpm. The angle described by the shaft in radian in one second is:

Guinness World Records (General Knowledge Focus) PYQ
a 100π
b 20π
d 20
74

The angular speed of the second hand of a watch is:

Guinness World Records (General Knowledge Focus) PYQ
a (π / 1800) rad/sec
b (π / 60) rad/sec
c (π / 30) rad/sec
d (2π) rad/sec
75

A stretched string vibrates with frequency f, when tension in the string is T, for what value of tension, the frequency of the same string is doubled?

Guinness World Records (General Knowledge Focus) PYQ
a 2T
b 4T
c 8T
d 16T
76

The longitudinal waves travel more slowly in than in?

Guinness World Records (General Knowledge Focus) PYQ
a Solids, gases
b Solids, liquids
c Gases, solids
d Liquid, gases
77

Small amplitude water waves are generated in a large ripple tank. The waves travel at 25cm/s and their adjacent crests are 5.0cm apart. The time required for each new whole cycle to be generated is:

World Leaders in News PYQ
a 100sec
b 4.0sec
c 2.0sec
d 0.2sec
78

The distance between adjacent node and anti-node is equal to:

Guinness World Records (General Knowledge Focus) PYQ
a λ
b λ/2
c 2λ
d λ/4
79

A string clamped at its both ends, vibrates in four segments (loops). The length of string is 150 cm. The wavelength of the wave is:

Guinness World Records (General Knowledge Focus) PYQ
a 33.3 cm
b 66.7 cm
c 150 cm
d 75 cm
80

The square root of the ratio of elasticity to mass density is equal to:

World Leaders in News PYQ
a Force
b Product of frequency and wavelength
c Refractive index
d Co-efficient of Viscosity
81

If the pressure of air enclosed in a long tube is increased 10 times, then speed of sound will:

Time Zones and Latitude–Longitude PYQ
a Increase
b Decrease
c Remain constant
d Become Zero
82

The expression C_p - C_v = is equal to:

Guinness World Records (General Knowledge Focus) PYQ
a C_p
b R
c C_v
d R + C_p
83

In a certain process, 200 J of heat energy is supplied to a system and at the same time 50 J of work is done by the system. The increase in the internal energy of the system is:

Time Zones and Latitude–Longitude PYQ
a 25 J
b 100 J
c 150 J
d 250 J
84

Work done during isochoric process is:

Guinness World Records (General Knowledge Focus) PYQ
a Negative
b Maximum Negative
c Maximum Positive
d Zero
85

Two charges of magnitude q₁ = 1 μC and q₂ = 5 μC, are separated at a distance r = 1 × 10⁻³ m apart, the ratio of the magnitude of the forces acting on them will be:

Financial Action Task Force (FATF) PYQ
a 1:5
b 1:25
c 5:1
d 1:1
86

For 0.5 Siemens of conductance, resistance will be:

Guinness World Records (General Knowledge Focus) PYQ
a 1 Ω
b 2 Ω
c 10 Ω
d 100 Ω
87

1 volt at 1 ampere is equal to:

Guinness World Records (General Knowledge Focus) PYQ
a 1 coulomb
b 1 newton
c 1 watt
d 1 hp
88

A wire of length L has resistivity ρ. If the wire is divided in two halves, then resistivity of each halve is:

Guinness World Records (General Knowledge Focus) PYQ
a ρ/2
b ρ
c 2ρ
d ρ/3
89

In how many hours a 1000-watt AC will consume one unit of electricity?

Guinness World Records (General Knowledge Focus) PYQ
a 0.5 hr
b 1 hr
c 1.5 hr
d 2 hr
90

Of the following, the copper conductor that has the least resistance must be:

East African Community (EAC) PYQ
a thick, short and cool
b thin, long and hot
c thick, long and hot
d thin, short and cool
91

A certain x-ray tube requires a current of 5 mA at a voltage of 60 kV. The rate of energy dissipation (in watts) is:

International Atomic Energy Agency (IAEA) PYQ
a 360 W
b 300 W
c 200 W
d 800 W
92

Ampere Second is the unit of:

Guinness World Records (General Knowledge Focus) PYQ
a Power
b Charge
c Potential difference
d Current
93

The magnitude of the magnetic flux through area A has exactly the same value at angles:

Area, Population and Official Languages PYQ
a 0° and 180°
b 90° and 180°
c 160° and 270°
d 270° and 360°
94

A hydrogen atom that has lost its electron is moving east in a region where the magnetic field is directed from south to north. It will be deflected:

North Atlantic Treaty Organization (NATO) PYQ
a Up
b Down
c North
d South
95

When the magnetic force acts on a charge particle, change occurs in:

United Nations Framework Convention on Climate Change (UNFCCC) PYQ
a Magnitude of velocity only
b Magnitude and direction of velocity
c Only the direction of velocity
d Neither direction nor magnitude of velocity
96

A constant magnetic field of 5T is passing through a static conducting loop of area 0.8m², the induced emf is:

Area, Population and Official Languages PYQ
a 4 V
b 10 V
c Zero
d 32 V
97

Magnetic flux linked with a conducting loop "A" is increased at the rate of 15 weber/second and in another conducting loop "B" is decreased at the rate of 15 weber/second, the magnitude of induced emf of:

Guinness World Records (General Knowledge Focus) PYQ
a Loop A will be equal to loop B
b Loop A is smaller than loop B
c Loop B is smaller than loop A
d Both will be zero
98

For induced emf to be produced in a coil, the magnetic flux linked with a coil must:

Changed Names of Countries and Cities PYQ
a only decrease
b only increase
c be constant
d be changed
99

For half wave rectification, the number of diode needed in a circuit is:

Guinness World Records (General Knowledge Focus) PYQ
a 1
b 2
c 3
d 4
100

The frequency of a light beam "A" is half of that of light beam "B". The ratio E_A/E_B of photons energies is:

Guinness World Records (General Knowledge Focus) PYQ
a 1/2
b 1/4
c 1
d 2
101

The wavelength of photon "A" is half the wavelength of photon "B". The energy of a photon "A" is:

International Atomic Energy Agency (IAEA) PYQ
a half the energy of a photon B
b one-fourth the energy of a photon B
c equal to the energy of photon B
d twice the energy of photon B
102

If frequency of light is greater than threshold frequency then in photoelectric effect the number of electrons increases with increase in ______ of light:

International Atomic Energy Agency (IAEA) PYQ
a frequency
b kinetic energy
c intensity
d momentum
103

The shortest wavelength associated to Paschen series is:

Guinness World Records (General Knowledge Focus) PYQ
a λ = 9/R
b λ = 5/R
c λ = 11/R
d λ = 6/R
104

The ratio of shortest wavelength to longest of Lyman Series is:

Highest, Largest, Longest, Smallest in the World PYQ
a 1/4
b 4/3
c 3/4
d 4/5
105

Half-life of a radioactive element is 100 days. How much quantity of the 88 g of such element will remain after three half-lives?

Guinness World Records (General Knowledge Focus) PYQ
a 8 g
b 10 g
c 11 g
d 44 g
106

Radioactive ⁹⁰Sr has a half-life of 30 years. What percent of a sample of ⁹⁰Sr will remain after 90 years?

Guinness World Records (General Knowledge Focus) PYQ
a 0%
b 12.5%
c 50%
d 75%
107

At the end of 15min, 1/32 of a sample of radioactive polonium remains. The corresponding half-life is:

Guinness World Records (General Knowledge Focus) PYQ
a 0.460min
b 3min
c 15min
d 32min
108

Two equal and opposite charges of 10 C are separated at a distance of 10 cm, the electric potential at mid-point between the charges is:

Guinness World Records (General Knowledge Focus) PYQ
a 10 V
b 10 V
c 5 V
d 0 V
109

The force of repulsion between two alike charges is 10 N in vacuum. When a material of εᵣ = 2 is placed between them, new force will be:

Financial Action Task Force (FATF) PYQ
a 20 N
b 15 N
c 10 N
d 5 N
110

The slope of the charge-time graph for a charging capacitor gives:

Time Zones and Latitude–Longitude PYQ
a Current
b Voltage
c Force
d Energy
111

Two small charged objects attract each other with a force F when separated by a distance d. If the charge on each object is reduced to one-fourth of its original value and the distance between them is reduced to d/2 the force becomes:

Financial Action Task Force (FATF) PYQ
a F/16
b F/8
c F/4
d F/2
112

If both the plate area and the plate separation of a parallel-plate capacitor are doubled, the capacitance is:

Area, Population and Official Languages PYQ
a doubled
b halved
c unchanged
d tripled
113

A 20µF capacitor is charged to 200 V. Its stored energy is:

International Atomic Energy Agency (IAEA) PYQ
a 4 J
b 4000 J
c 0.4 J
d 2000 J
114

The primary winding of a transformer has a 120 V AC supply. What is the value of secondary voltage if the turn ratio is 20. (turn ratio = N₁/N₂)

Guinness World Records (General Knowledge Focus) PYQ
a 2400 V
b 1200 V
c 24000 V
d 200 V
115

I like ___ blue T-shirt over there better than ___ red one.

Guinness World Records (General Knowledge Focus) PYQ
a no article, the
b the, the
c the, a
d a, the
116

All you think and hanker ___ is government service.

Commonwealth Heads of Government Meeting (CHOGM) PYQ
a on
b for
c at
d upon
117

Choose the correct sentence.

Guinness World Records (General Knowledge Focus) PYQ
a I have always and I am always your friend.
b I have always and am still your friend.
c I have always been and I have still your friend.
d I have always been and still am your friend.
118

The director as well as the manager of the hotel ___ attending the meeting.

Commonwealth Heads of Government Meeting (CHOGM) PYQ
a is
b are
c were
d has
119

Read the passage and answer the question Given at the end.For my 25th birthday, my uncle gave me a gift card to go skydiving at a special place near Miami. I was happy because I wanted to do something well. On the day of my jump, I could not take breakfast because of the nerves. Before I knew the danger involved in it, I was on the plane with a parachute on my back. After the fall, I could feel adrenaline running through me. Then the parachute opened, and I was floating freely, like a bird. Those wonderful moments helped me to realize that I am the kind of person who can take risks in life.119. The author learns from the experience of skydiving that:

World Leaders in News PYQ
a Skydiving is dangerous.
b Miami is a good place for skydiving.
c He is capable of doing risky things in life.
d Skydiving made him so nervous that he could not take breakfast in the morning.
120

The novice teacher was excited about her first teaching job. [The word closest in meaning to the underlined word is]

Guinness World Records (General Knowledge Focus) PYQ
a Experienced
b Beginner
c Erudite
d Stern
121

Choose the correct spelling:

Guinness World Records (General Knowledge Focus) PYQ
a Loquacious
b Logiculous
c Logucious
d Loguscious
122

If I were younger, I ___ around the world.

Guinness World Records (General Knowledge Focus) PYQ
a will travel
b would have travelled
c would travel
d travel
123

The flower girl sold HIM flowers. [The Capitalized word is]

Guinness World Records (General Knowledge Focus) PYQ
a Direct object
b Indirect object
c Complement
d Predicate
124

Identify the past simple tense in the following.

Weather, Atmosphere and Temperature PYQ
a We have been reading in the classroom since morning.
b He had broken this window.
c They spoke in Urdu to the waitress.
d She is enjoying the weather on the roof.
125

Something odd was happening all around the world. [Identify the clause]

Guinness World Records (General Knowledge Focus) PYQ
a Subordinate clause
b Independent clause
c Dependent clause
d Relative clause
126

We met rather few people who spoke English. [The sentence is]

World Leaders in News PYQ
a Complex
b Simple
c Compound
d Compound complex
127

Identify the sentence with correct punctuation and capitalization.

Guinness World Records (General Knowledge Focus) PYQ
a The automobile dealer handled three makes of cars: Toyota, Suzuki, and Honda.
b The automobile dealer handled three makes of cars, Toyota, Suzuki, and Honda.
c The automobile dealer handled three makes of cars: Toyota' Suzuki' and Honda
d None of these
128

Which of the following sentences is in correct order?

Guinness World Records (General Knowledge Focus) PYQ
a We to Karachi drove in two days right up.
b We up right drove to Karachi in two days.
c We right drove to Karachi up in two days.
d We drove right up to Karachi in two days.
129

You can either come with me now nor walk home later. [The word which does not fit in the sentence is]

Guinness World Records (General Knowledge Focus) PYQ
a Can
b Either come
c Now
d Nor
130

I just don't want to get out off bed today. [Find an error in the sentence if any]

Guinness World Records (General Knowledge Focus) PYQ
a Get out
b Just
c Off
d No error
131

Read the passage and answer the questions given at the end (Q131-132).Effort should be made to control the use of tobacco in the campuses of educational institutions because it is gateway to drug abuse.Most of the youths usually start with soft drugs like cigarettes, chaliya, gutka, masher and pan, and then move to hard drugs like heroin, opium, cocaine, ice and sheesha, etc. People who start smoking cigarettes or drink alcohol at a young age are much more likely to experiment with illegal drugs than people who do not smoke or drink.131. According to the paragraph:

World Leaders in News PYQ
a Educational institutions are gateways to the control of tobacco
b Youths who start with soft drugs are likely to experiment with illegal drugs
c People who do not smoke or drink are less likely to experiment with illegal drugs
d People who start smoking at a young age are less likely to experiment with illegal drugs
132

Smoking cigarettes or drinking alcohol leads to:

United Nations Educational, Scientific and Cultural Organization (UNESCO) PYQ
a Legal drugs
b Illegal drugs
c Soft drugs
d The use of tobacco in educational institutions
133

Which of the following statements is not correct about alveoli:

United Nations Framework Convention on Climate Change (UNFCCC) PYQ
a Alveoli form the gas exchange surface
b The wall of each alveolus is 0.1 cm thick
c Alveoli has a dense network of capillaries
d Collagen and elastin present in alveoli allow it to expand and recoil easily during breathing
134

Which of the following connective tissues consist of cells known as chondrocytes:

Disputed Territories & International Issues PYQ
a Myocardium
b Cartilage
c Bone
d Periosteum
135

The joint present between wrist bones is:

Guinness World Records (General Knowledge Focus) PYQ
a Fibrous joint
b Cartilaginous joint
c Hinge joint
d Ball and socket joint
136

A sarcomere is the region of a myofibril between two successive:

Guinness World Records (General Knowledge Focus) PYQ
a I-line
b A-line
c Z-line
d M-line
137

The size of synaptic cleft (the gap separating nerve cells) in electrical synapses:

Guinness World Records (General Knowledge Focus) PYQ
a 0.2 nm
b 2 nm
c 20 nm
d 200 nm
138

The activities like sleeping, walking and dreaming are controlled by which part of brain:

Guinness World Records (General Knowledge Focus) PYQ
a Pons
b Cerebellum
c Olfactory bulb
d Hippocampus
139

The hormone "calcitonin" is secreted by:

Guinness World Records (General Knowledge Focus) PYQ
a Thyroid gland
b Parathyroid gland
c Pancreas
d Adrenal gland
140

Fallopian tube is also known as:

Guinness World Records (General Knowledge Focus) PYQ
a Oviduct
b Ovaries
c Uterus
d Cervix
141

The syphilis is a ______ disease:

Famous Seas PYQ
a Bacterial
b Fungal
c Protozoan
d Viral
142

The most common symptom of gonorrhea in males is:

Most Repeated GK MCQs from Past Papers PYQ
a Skin rash on neck
b Joint pain
c Painful urination
d Chancre
143

G. J. Mendel chose ______ as an experimental plant for his study:

Guinness World Records (General Knowledge Focus) PYQ
a Medicago sativa
b Pisum sativum
c Delonix regia
d Lens culinaris
144

When round and yellow color seeded plant (RrYy) is self-crossed the number of plants with round and yellow color seeds obtained is ______ in 32 plants:

International Federation of Red Cross and Red Crescent Societies (IFRC) PYQ
a 1
b 3
c 9
d 18
145

In crossing over, exchange of maternal and paternal chromatid parts occurs while homologous chromosomes are paired during:

International Federation of Red Cross and Red Crescent Societies (IFRC) PYQ
a Prophase of meiosis I
b Prophase of meiosis II
c Metaphase of meiosis I
d Metaphase of meiosis II
146

Drosophila melanogaster is the scientific name of:

United Nations Educational, Scientific and Cultural Organization (UNESCO) PYQ
a House fly
b Fruit fly
c Flesh fly
d Sand fly
147

A condition that renders the individual less able to form blood clot is:

Guinness World Records (General Knowledge Focus) PYQ
a Alport syndrome
b Coffin-Lowry syndrome
c Hemophilia
d Thalassemia
148

Inter-specific struggle refers to:

United Nations Environment Programme (UNEP) PYQ
a Competition between members of the same species
b Competition between members of different species
c Environmental struggle
d Prey or predation
149

Identify fossil bird among the following:

Guinness World Records (General Knowledge Focus) PYQ
a Equus
b Python
c Archaeopteryx
d Dawn horse
150

Which of the following organelle is regarded as self-replicating organelle:

Guinness World Records (General Knowledge Focus) PYQ
a Endoplasmic reticulum
b Golgi bodies
c Mitochondria
d Vacuole
151

The prokaryotic cell wall composed of:

Guinness World Records (General Knowledge Focus) PYQ
a Cellulose
b Chitin
c Murein
d Pectin
152

_____ is found in the exoskeleton of crabs.

Guinness World Records (General Knowledge Focus) PYQ
a Cellulose
b Chitin
c Murein
d Hemi-cellulose
153

Choose the unsaturated fatty acid among the following:

Guinness World Records (General Knowledge Focus) PYQ
a Palmitic acid
b Arachidic acid
c Stearic acid
d Oleic acid
154

The conjugated molecule that is primarily present in egg albumin is:

Guinness World Records (General Knowledge Focus) PYQ
a Lipoprotein
b Nucleoprotein
c Glycolipid
d Glycoprotein
155

FSH (Follicle Stimulating Hormone) stimulates spermatogenesis by stimulating ______ cells to complete the development of sperms.

United Nations Industrial Development Organization (UNIDO) PYQ
a Leydig
b Inhibin
c Sertoli
d TSH
156

The process of photophosphorylation takes place in:

Guinness World Records (General Knowledge Focus) PYQ
a Nucleolus
b Chloroplast
c Nucleus
d Golgi bodies
157

Which of the following hormones is released by the posterior lobe of pituitary gland?

Post Cold War World PYQ
a Antidiuretic hormone
b Growth hormone
c Prolactin
d Estrogen
158

Which of the following agents can easily pass through filter paper?

East African Community (EAC) PYQ
a Bacteria
b Fungi
c Yeast
d Virus
159

HIV belongs to a special class of virus known as:

Guinness World Records (General Knowledge Focus) PYQ
a Retrovirus
b Flavivirus
c Novavirus
d Tetravirus
160

The capsule of a bacterial cell is a sticky gelatinous structure made up of protein and:

Earth’s Structure and Geological Features PYQ
a Lipid
b Carbohydrate
c Nucleotide
d Alcohol
161

The transgenic plants, such as golden rice are produced primarily with the help of:

Guinness World Records (General Knowledge Focus) PYQ
a Escherichia coli
b Proteus mirabilis
c Agrobacterium tumefaciens
d Ralstonia solanacearum
162

Which of the following chemicals is used to preserve biological specimens:

Guinness World Records (General Knowledge Focus) PYQ
a Formalin
b Glutaraldehyde
c Ethylene Oxide
d Iodine
163

Coral reefs are the characteristic feature of phylum:

Guinness World Records (General Knowledge Focus) PYQ
a Porifera
b Coelenterata
c Arthropoda
d Platyhelminthes
164

According to sliding filament hypothesis, the release of ______ ions from the sarcoplasmic reticulum causes the reorientation of certain components in thin filament, permitting them to bind with extension from the thick myosin filaments:

Guinness World Records (General Knowledge Focus) PYQ
a Sodium
b Calcium
c Magnesium
d Potassium
165

The green glands found in arthropods are concerned with:

Green Climate Fund (GCF) PYQ
a Excretion
b Respiration
c Digestion
d Circulation
166

The Purkinje fibers are the specialized fibers found in:

United Nations Human Settlements Programme (UN-Habitat) PYQ
a Human heart
b Human lungs
c Human stomach
d Human brain
167

The largest body of lymphoid tissue in the human body is:

Geographic Extremes (Largest, Smallest, Deepest) PYQ
a Tonsil
b Pancreas
c Spleen
d Thymus
168

The immune cells that clean up pus as a part of the healing process is:

Natural Resources PYQ
a Natural killer cell
b Macrophages
c Antibodies
d Neutrophils
169

Lipid synthesis occurs in which one of the following organelle of the cell?

Guinness World Records (General Knowledge Focus) PYQ
a Golgi bodies
b Ribosome
c Mitochondria
d Endoplasmic reticulum
170

The testes are male gonads which are situated outside the abdomen within a skin pouch called:

Guinness World Records (General Knowledge Focus) PYQ
a Vas deferens
b Epididymis
c Scrotum
d Vas afferentia
171

The term polydipsia refers to:

Guinness World Records (General Knowledge Focus) PYQ
a A condition in which abnormally large volume of urine is produced
b A condition of excessive thirst
c A condition of excessive hunger
d A condition in which the concentration of blood decreases in the body
172

Lactose is composed of:

Guinness World Records (General Knowledge Focus) PYQ
a Glucose + Fructose
b Glucose + Galactose
c Glucose + Glucose
d Fructose + Galactose
173

Saprophytic bacteria are:

Guinness World Records (General Knowledge Focus) PYQ
a Autotrophs
b Decomposers
c Parasites
d Photosynthetic
174

In human heart right atrium communicates with right ventricle through:

United Nations Human Settlements Programme (UN-Habitat) PYQ
a Inter-auricular septum
b Ventricular septum
c Tricuspid valve
d Bicuspid valve
175

The first segment of the small intestine is:

Guinness World Records (General Knowledge Focus) PYQ
a Duodenum
b Jejunum
c Ileum
d Colon
176

Which one of the following factors does not affect the rate of enzyme action?

Weather, Atmosphere and Temperature PYQ
a Temperature
b Substrate concentration
c Enzyme concentration
d Water concentration
177

Light reaction occurs in the ______ of chloroplast:

Financial Action Task Force (FATF) PYQ
a Outer membrane
b Inner membrane
c Granum
d Stroma
178

How many pieces of ribonucleic acid (RNA) make up the genome of influenza virus?

Guinness World Records (General Knowledge Focus) PYQ
a 4
b 6
c 8
d 10
179

In Mendelian cross for heterozygous flower (Pp), what is the probability that the dominant allele will be in sperm and the recessive in the egg:

International Federation of Red Cross and Red Crescent Societies (IFRC) PYQ
a 0.75
b 0.25
c 0.5
d 0.05
180

Mastication causes exocrine glands under the tongue and in the back of mouth to secrete a watery liquid called:

Guinness World Records (General Knowledge Focus) PYQ
a Bolus
b Bile
c Pancreatic juice
d Saliva
181

In phylum Aschelminthes (Nematoda), nervous system consists of a nerve ring which encircles the ______ and sends its branches in different parts of the body:

Central American Integration System (SICA) PYQ
a Lips
b Teeth
c Stomach
d Pharynx
182

Salmonella typhi causing typhoid and ______ Clostridium tetani causing tetanus are which type of bacteria?

Guinness World Records (General Knowledge Focus) PYQ
a Bacilli
b Spirilla
c Cocci
d Comma
183

Who formulated the principle that 'ontogeny recapitulates phylogeny':

World Leaders in News PYQ
a Von Baer
b Haeckel
c Herbert Spencer
d Darwin
184

Aquatic mammals belong to the order ______:

Guinness World Records (General Knowledge Focus) PYQ
a Cetacea
b Pholidota
c Chiroptera
d Proboscidea
185

All of the following paired organs/structures have homology except:

Earth’s Structure and Geological Features PYQ
a Human hand: Bat's wing
b Bat's wing: Wings of butterfly
c Horse front leg: Front flippers of whale
d Wings of bird: Wings of flying lizards
186

The head of some phages are icosahedral, which means that the head possess:

Guinness World Records (General Knowledge Focus) PYQ
a 6 sides
b 10 sides
c 15 sides
d 20 sides
187

In sickle cell, haemoglobin molecule, glutamic acid, is replaced by:

Guinness World Records (General Knowledge Focus) PYQ
a Proline
b Glutamine
c Valine
d Glycine
188

Where do phospholipids arrange themselves in a cell?

Guinness World Records (General Knowledge Focus) PYQ
a Inside the nucleus
b Inside the cytoplasm
c In the plasma membrane
d Inside the mitochondrial matrix
189

Which type of nerve impulse occurs in non-myelinated neuron fibers?

Guinness World Records (General Knowledge Focus) PYQ
a Saltatory impulse
b Continuous impulse
c Rapid impulse
d Jumping impulse
190

In alcoholic fermentation ______ ATP molecules are produced from 1 glucose molecule:

Guinness World Records (General Knowledge Focus) PYQ
a 2
b 18
c 32
d 36
191

Amino acids mainly differ from each other by the difference in their:

Group of Seven (G7) PYQ
a R-group
b Amino group
c Carboxyl group
d Hydrogen of alpha carbon
192

All of the following are related to enzymes except:

Changed Names of Countries and Cities PYQ
a Speed up reaction
b Remain unchanged after reaction
c Increase the activation energy
d Possesses the active site
193

The cytoplasm contain(s):

Guinness World Records (General Knowledge Focus) PYQ
a Insoluble waste only
b Cell organelle only
c Storage products only
d Cell organelle, insoluble waste & storage products
194

Tay-sach's disease particularly results from the malfunctioning of:

Famous Seas PYQ
a Cell membrane
b Nucleus
c Lysosomes
d Vacuole
195

Enzymes present in mammals work best at about:

Guinness World Records (General Knowledge Focus) PYQ
a 20 °C
b 30 °C
c 40 °C
d 50 °C
196

An example of competitive inhibitor molecule is:

Guinness World Records (General Knowledge Focus) PYQ
a Insecticides
b Sulphonamide
c Cyanide
d Metal ions
197

The ATP formed in the preparatory phase of glycolysis is [are]:

Guinness World Records (General Knowledge Focus) PYQ
a 1
b 2
c 4
198

Mitochondria is usually absent in:

Guinness World Records (General Knowledge Focus) PYQ
a Muscle cells
b Cardiac cells
c Mature RBC's
d WBC's
199

___ consists of units called dictyosomes.

Guinness World Records (General Knowledge Focus) PYQ
a Ribosomes
b Lysosomes
c Glyoxysomes
d Golgi complex
200

The optimal pH of lipase (pancreas) is:

Guinness World Records (General Knowledge Focus) PYQ
a 4.0 - 5.0
b 1.5 - 1.6
c 8.0
d 6.1 - 6.8

About This Paper

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Topic Weightage

Guinness World Records (General Knowledge Focus) 55.5%
Financial Action Task Force (FATF) 7.5%
World Leaders in News 3.5%
Time Zones and Latitude–Longitude 3%
International Atomic Energy Agency (IAEA) 2.5%
Weather, Atmosphere and Temperature 2%
Central American Integration System (SICA) 2%
Group of Seven (G7) 2%
Highest and Lowest Points 1.5%
Commonwealth Heads of Government Meeting (CHOGM) 1.5%
Area, Population and Official Languages 1.5%
International Federation of Red Cross and Red Crescent Societies (IFRC) 1.5%
United Nations Human Settlements Programme (UN-Habitat) 1%
United Nations High Commissioner for Refugees (UNHCR) 1%
Most Repeated GK MCQs from Past Papers 1%
Post Cold War World 1%
North Atlantic Treaty Organization (NATO) 1%
Geographic Extremes (Largest, Smallest, Deepest) 1%
East African Community (EAC) 1%
United Nations Framework Convention on Climate Change (UNFCCC) 1%
Changed Names of Countries and Cities 1%
United Nations Educational, Scientific and Cultural Organization (UNESCO) 1%
Famous Seas 1%
Earth’s Structure and Geological Features 1%
Green Climate Fund (GCF) 0.5%
Natural Resources 0.5%
United Nations Office for the Coordination of Humanitarian Affairs (OCHA) 0.5%
Global Health & Medical Advances 0.5%
Highest, Largest, Longest, Smallest in the World 0.5%
Disputed Territories & International Issues 0.5%
United Nations Environment Programme (UNEP) 0.5%
United Nations Industrial Development Organization (UNIDO) 0.5%