Solved Past Paper
NUMS MDCAT Past Paper 2018
Practice and review NUMS MDCAT Past Paper 2018 with verified questions, correct answer keys, and detailed solutions.
Total Questions
91 Qs
Duration Limit
150 Min
Negative Mark
0.00
Attempt Count
0
Solved Questions & Explanations
91 questions with verified answers and explanations
1
On hydrogen atom spectrum, series of ______ within visible region, is:
Guinness World Records (General Knowledge Focus)
PYQ
a
Lyman series
b
Balmer series
c
Paschen series
d
Bracket series
Also appeared in
2
s-sp³ overlap occurs in ______ molecules:
Guinness World Records (General Knowledge Focus)
PYQ
a
Cl₂
b
CH₄
c
HF
d
HI
Also appeared in
3
ΔH = ΔE + PΔV is the change in enthalpy at constant ______.
Weather, Atmosphere and Temperature
PYQ
a
Volume
b
Pressure
c
Temperature
d
Mass
Also appeared in
4
As the concentration of reactant increases, the rate of reaction also increases, it is because:
Financial Action Task Force (FATF)
PYQ
a
Oscillation increases between molecules
b
K.e. increase in molecules
c
Collisions frequency increases
d
None of these
Also appeared in
5
The equation shows the reaction between elements X and dilute hydrochloric acid.What types of bonding are present in element X and in compound XCl₂? X(s)+ 2HCl(aq) → XCl₂(aq) + H₂(g) Type of bonding In element X In compound XCl₂A Covalent CovalentB Covalent IonicC Metallic CovalentD Metallic Ionic
Financial Action Task Force (FATF)
PYQ
a
Covalent covalent
b
Covalent ionic
c
Metallic covalent
d
Metallic ionic
Also appeared in
6
If the value of Kc is very large then it shows that ______ completed.
Financial Action Task Force (FATF)
PYQ
a
Forward reaction
b
Reverse reaction
c
Equilibrium is maintained
d
Kc is moderate
Also appeared in
7
For stable molecular geometry, each carbon atom of undergoes:
Guinness World Records (General Knowledge Focus)
PYQ
a
Sp² hybridization
b
Sp³ hybridization
c
Dsp² hybridization
d
D²sp² hybridization
Also appeared in
8
If the absolute temperature of a gas is reduced to one half and the pressure is doubled, the volume of gas will be:
Changed Names of Countries and Cities
PYQ
a
Increased four times
b
Decreased four times
c
Remained unchanged
d
Reduced to one half
Also appeared in
9
Change in extensive property is proportional to the change in ______ of material.
Weather, Atmosphere and Temperature
PYQ
a
Temperature
b
Volume
c
Quantity
d
Pressure
Also appeared in
10
Which of the following has the highest electrical conductivity?
Highest and Lowest Points
PYQ
a
Aqueous sugar solution
b
Solid graphite
c
Solid sodium chloride
d
Gaseous carbon dioxide
Also appeared in
11
The oxidation number of nitrogen in the HNO₃ is ______.
Guinness World Records (General Knowledge Focus)
PYQ
a
4+
b
5+
c
6+
d
7+
Also appeared in
12
X is a salt that decomposed in water What is the reason for decomposition?
Guinness World Records (General Knowledge Focus)
PYQ
a
This potential oxidizes salt
b
This potential reduces salt
c
This potential reduces water
d
This potential oxidizes water
Also appeared in
13
In acidic medium, oxidation action of potassium permanganate depends upon:
Financial Action Task Force (FATF)
PYQ
a
Mn²⁺
b
KMn³⁺
c
MnO₃
d
Mn⁴⁺
Also appeared in
14
The energy required to remove the outermost electron from gaseous atom is called:
Most Repeated GK MCQs from Past Papers
PYQ
a
Electronegativity
b
Electropositivity
c
Ionization potential
d
Electron affinity
Also appeared in
15
Which sequence of reaction conditions should be used to produce the compound below from benzene?
Financial Action Task Force (FATF)
PYQ
a
AlCl₃/Cl₂, H₂/Rh/C
b
Cl₂/ UV light, H₂ / Rh / C
c
H₂ / Rh / C; AlCl₃ / Cl₂
d
HCl ; H₂ / Rh / C
Also appeared in
16
Cyanohydrins can be synthesized from ketones through:
Financial Action Task Force (FATF)
PYQ
a
Nucleophilic addition reaction
b
Uni-molecular nucleophilic substitution reaction
c
Electrophilic substitution reaction
d
Bimolecular nucleophilic substitution reaction
Also appeared in
17
Which of the following elements does not belong to elements?
Guinness World Records (General Knowledge Focus)
PYQ
a
Uranium
b
Samarium
c
Thorium
d
Osmium
Also appeared in
18
Gasoline is a mixture of hexane and ______.
Guinness World Records (General Knowledge Focus)
PYQ
a
Methane
b
Butane
c
Decane
d
Heptanes
Also appeared in
19
What is the name of the following compound?
Guinness World Records (General Knowledge Focus)
PYQ
a
1-ethyl-3, 4-dimethylcycloheptane
b
2-ethyl-4, 5-dimethylcyclohexane
c
1-ethyl-3, 4- dimethylcyclohexane
d
4-ethyl-1, 2- dimethylcyclohexane
Also appeared in
20
Bakelite is a polymer of formaldehyde and ______.
Guinness World Records (General Knowledge Focus)
PYQ
a
Phenol
b
Ethanol
c
Butanol
d
Methanol
Also appeared in
21
To avoid the formation of toxic compounds with ______ substance is used for disinfecting water?
Guinness World Records (General Knowledge Focus)
PYQ
a
KMnO₄
b
Chloramines
c
O₃
d
Alums
Also appeared in
22
Which one of the following is called animal starch?
Guinness World Records (General Knowledge Focus)
PYQ
a
Amylose
b
Cellulose
c
Glycogen
d
Glycine
Also appeared in
23
Enzymes are ______ that catalyze chemical living organisms and are very specific in their action:
Financial Action Task Force (FATF)
PYQ
a
Proteins
b
Vitamins
c
Lipids
d
Minerals
Also appeared in
24
HCOOH is the structure of:
World Leaders in News
PYQ
a
Acetic acid
b
Formic acid
c
Valeric acid
d
Caproic acid
Also appeared in
25
The reaction CH≡CH + H₂O + 3(O) shows the formation of ______.
Financial Action Task Force (FATF)
PYQ
a
Acetic acid
b
Picric acid
c
Oxalic acid
d
Formic acid
Also appeared in
26
In composition of natural gas 0.17% is constituted by:
Natural Resources
PYQ
a
Methane
b
Ethane
c
Butane
d
Nitrogen
Also appeared in
27
By fermentation process of starch and by the catalytic a enzyme ______ is produced.
Guinness World Records (General Knowledge Focus)
PYQ
a
Methyl alcohol
b
Ethyl alcohol
c
Acetyl alcohol
d
Methanol
Also appeared in
28
Methyl ketones can be characterized by performing:
Guinness World Records (General Knowledge Focus)
PYQ
a
Iodoform test
b
Schiff's test
c
Benedict reagent test
d
Tollen's test
Also appeared in
29
In RNA, which of the base is replaced by uracil?
Guinness World Records (General Knowledge Focus)
PYQ
a
Cytosine
b
Adenine
c
Guanine
d
Thymine
Also appeared in
30
In the atmosphere, CO₂ is about:
Weather, Atmosphere and Temperature
PYQ
a
0.01
b
0.03
c
0.05
d
0.09
Also appeared in
31
Chlorophyll, a naturally occurring macromolecule contain:
Natural Resources
PYQ
a
Mg²⁺
b
Al
c
Fe
d
B
Also appeared in
32
The reactions of below diagram with RMgX leads to the for of:
Financial Action Task Force (FATF)
PYQ
a
RCHOHR
b
RCHOHCH₃
c
R₂CHCH₂OH
d
RCH₂CH₂OH
Also appeared in
33
Alkyl halides can also be obtained by halogenation of ______.
Guinness World Records (General Knowledge Focus)
PYQ
a
Alcohols
b
Alkenes
c
Alkanes
d
Ketones
Also appeared in
34
Which of the following is necessary for the normal development of leaves and bark of the plants.
United Nations Industrial Development Organization (UNIDO)
PYQ
a
Sodium
b
Aluminium
c
Calcium
d
Beryllium
Also appeared in
35
Which of the following fertilizers has maximum percentage of nitrogen in solid state?
Guinness World Records (General Knowledge Focus)
PYQ
a
Ammonia
b
Urea
c
Di ammonium hydrogen phosphate
d
Ammonium nitrate
Also appeared in
36
Most bacteria require vitamins for which of the purpose?
Most Repeated GK MCQs from Past Papers
PYQ
a
Source of energy
b
Growth factors
c
Source of carbon
d
Source of electron donors
Also appeared in
37
Germs theory of disease was proposed by:
Famous Seas
PYQ
a
Leeuwenhoek
b
Louis Pasteur
c
Walther Flemming
d
Robert Koch
Also appeared in
38
Freeding of an object from all living organisms bacteria and their spores, fungi and their sp:
European Free Trade Association (EFTA)
PYQ
a
Sterilization
b
Disinfection
c
Decontamination
d
Immunization
Also appeared in
39
The process by which various components of cells including its organelle can be isolated is called:
Financial Action Task Force (FATF)
PYQ
a
Homogenization
b
Cell fractionation
c
Cell fixation
d
Cell electrophoresis
Also appeared in
40
Which of the following correctly shows structures which are found in a eukaryotic cell? (Yes = present; No = absent) Nuclear membrane Mitochondria Ribosomes
Earth’s Structure and Geological Features
PYQ
a
No No No
b
No Yes No
c
Yes No Yes
d
Yes Yes Yes
Also appeared in
41
Which of the following terms is used to describe the membrane of central vacuole?
Central American Integration System (SICA)
PYQ
a
Tonoplast
b
Myoplast
c
Periplast
d
Epitonoplast
Also appeared in
42
The major portion of (NH₂)₂CO is secreted by:
Major Cities and Urban Areas
PYQ
a
Sweat
b
Saliva
c
Urine
d
Stool
Also appeared in
43
In white blood cells, monocytes have a short life period of ______ hours:
Guinness World Records (General Knowledge Focus)
PYQ
a
10 - 20
b
21 - 30
c
31 - 35
d
36 - 40
Also appeared in
44
The fungal cell wall contains:
Guinness World Records (General Knowledge Focus)
PYQ
a
Peptidoglycan
b
Chitin
c
Suberin
d
Cutin
Also appeared in
45
DNA synthesis takes place in ______ phase of the cell:
Guinness World Records (General Knowledge Focus)
PYQ
a
G0
b
G1
c
G2
d
S
Also appeared in
46
The RNA found in Ribosomes is?
Guinness World Records (General Knowledge Focus)
PYQ
a
M RNA
b
R RNA
c
T RNA
d
Polysome
Also appeared in
47
The outermost boundary in most of the leaf cell is:
Most Repeated GK MCQs from Past Papers
PYQ
a
Cell wall
b
Cell membrane
c
Tonoplast
d
Unit membrane
Also appeared in
48
In human, cell ______ is responsible for producing hydrogen peroxides.
United Nations Human Settlements Programme (UN-Habitat)
PYQ
a
Lysosomes
b
Mitochondria
c
Peroxisomes
d
Glyoxisomes
Also appeared in
49
The soluble part of the blood is called:
Guinness World Records (General Knowledge Focus)
PYQ
a
Karyolymph
b
Nucleoplasm
c
Protoplasm
d
Serum
Also appeared in
50
The animals that feed on organic debris from decomposing plants and animals are called:
Guinness World Records (General Knowledge Focus)
PYQ
a
Herbivores
b
Carnivores
c
Omnivores
d
Detritivores
Also appeared in
51
Pinacocytes forms ______.
Guinness World Records (General Knowledge Focus)
PYQ
a
Pores
b
Ostia
c
Epidermis
d
Spongocoel
Also appeared in
52
Actinia is the biological name of:
Guinness World Records (General Knowledge Focus)
PYQ
a
Sea anemone
b
Corals
c
Obelia
d
Jellyfish
Also appeared in
53
The simplest form in kingdom Animalia belongs to.
Guinness World Records (General Knowledge Focus)
PYQ
a
Eumetazoa
b
Bilateria
c
Parazoa
d
Protostomia
Also appeared in
54
The porifera are pore-bearing animals, commonly called.
Common Market for Eastern and Southern Africa (COMESA)
PYQ
a
Corals
b
Sponges
c
Hydras
d
Anemones
Also appeared in
55
High level of ____ and ____ in the blood, contributing factors in the formation of kidney stones.
United Nations High Commissioner for Refugees (UNHCR)
PYQ
a
Calcium, oxalate
b
Calcium, magnesium
c
Calcium, sodium
d
Sodium, sulphate
Also appeared in
56
Identify the correct order?
Central American Integration System (SICA)
PYQ
a
Organ>function>cell>tissue
b
Cell>organ>tissue>function
c
Cell>tissue>organ>system
d
Tissue>organ>cell>function
Also appeared in
57
Blood containing CO₂ is:
Guinness World Records (General Knowledge Focus)
PYQ
a
Red color
b
Blue color
c
Reddish purple color
d
Reddish blue color
Also appeared in
58
The mechanism by which substances are removed from the blood and are directly added to the tubular fluids is called?
Guinness World Records (General Knowledge Focus)
PYQ
a
Glomerular filtration
b
Excretion
c
Tubular secretion
d
Tubular re-absorption
Also appeared in
59
Neurons CANNOT undergo division, because they do not have?
Guinness World Records (General Knowledge Focus)
PYQ
a
Centrosomes
b
Nucleus
c
Mitochondria
d
Golgi apparatus
Also appeared in
60
Hypothalamus initiates the release of hormones, by their releasing factors, while ____ is directly released by is.
Guinness World Records (General Knowledge Focus)
PYQ
a
TSH
b
Oxytocin
c
ACTH
d
FSH
Also appeared in
61
Transport of glucose across the cell membrane occurs by?
International Federation of Red Cross and Red Crescent Societies (IFRC)
PYQ
a
Simple diffusion
b
Facilitated diffusion
c
Osmosis
d
Primary active transport
Also appeared in
62
Which artery supplies blood to the liver?
Guinness World Records (General Knowledge Focus)
PYQ
a
Pulmonary artery
b
Hepatic artery
c
Celiac artery
d
Thoracic artery
Also appeared in
63
Movement of the Hip joint is which type of synovial joints?
Non-Aligned Movement (NAM)
PYQ
a
Gliding joint
b
Ball and socket joint
c
Pivot joints
d
Hinge joint
Also appeared in
64
A hormone called ____ controls the secretion of gastric juice.
Guinness World Records (General Knowledge Focus)
PYQ
a
Gastrin
b
Secretin
c
Thyroxin
d
Idothyroxine
Also appeared in
65
Process of uncontrolled cell division is due to which one of the following reasons?
Guinness World Records (General Knowledge Focus)
PYQ
a
DNA replication
b
Mutations
c
Translation
d
Transcription
Also appeared in
66
Which of the following is derived from Latin word VENUME which means poisonous?
Guinness World Records (General Knowledge Focus)
PYQ
a
Bacteria
b
Fungi
c
Virus
d
Malaria
Also appeared in
67
Functions of the brainstem include all of the following EXCEPT:
Post Cold War World
PYQ
a
Integration of righting reflexes
b
Autonomic control for respiration
c
Equilibrium and posture regulation
d
Initiation of voluntary moments
Also appeared in
68
Cardiac output is increased by all the following EXCEPT:
Guinness World Records (General Knowledge Focus)
PYQ
a
Hypoxia
b
Exercise
c
Sleep
d
Pregnancy
Also appeared in
69
An enzyme that helps in the conversion of RNA to DNA is called:
Guinness World Records (General Knowledge Focus)
PYQ
a
Polymerase
b
Transcriptase
c
Reverse transcriptase
d
Synthetase
Also appeared in
70
Sequence of stop codon in DNA is:
Guinness World Records (General Knowledge Focus)
PYQ
a
TAG
b
AUG
c
UAG
d
AGT
Also appeared in
71
The type of gene interaction in which the effect caused by a gene at one force interfere with the effect caused by another gene at another locus is known as:
Financial Action Task Force (FATF)
PYQ
a
Pleiotropy
b
Epistasis
c
Polygenic inheritance
d
Gene linkage
Also appeared in
72
Which one of the following pairs represents analogous feature:
United Nations Human Settlements Programme (UN-Habitat)
PYQ
a
Elephant tusks and human incisors
b
Teleost erythrocyte and mammalian erythrocyte
c
Insect wing and bat wing
d
Mole forelimb and bird wing
Also appeared in
73
The position of an organism in a food chain of an ecosystem called:
Food and Agriculture Organization (FAO)
PYQ
a
Level of ecosystem
b
Food chain
c
Food web
d
Trophic level
Also appeared in
74
Which of the following trophic levels has largest biomass ecosystem?
Geographic Extremes (Largest, Smallest, Deepest)
PYQ
a
Decomposers
b
Primary consumer
c
Secondary consumer
d
Producers
Also appeared in
75
The zone with insufficient light to support photosynthesis ecosystem is called:
Ocean Currents and Tides
PYQ
a
Oceanic sub-zone
b
Linnetic zone
c
Profundal zone
d
Littoral benthal zone
Also appeared in
76
If an ideal gas has volume V at 27° and R is head becomes 1.5V. then the value of final temperature is ______.
Weather, Atmosphere and Temperature
PYQ
a
327K
b
873L
c
177°C
d
600°C
Also appeared in
77
An electron is moving along the axis of a solenoid carrying correct statement about the electromagnetic force acting on:
Financial Action Task Force (FATF)
PYQ
a
The force acts radially outwards
b
The force acts radially inwards
c
The force acts in the direction of motion
d
No force acts
Also appeared in
78
The magnetic lines of force are directed in a manner that that:
Important Lines and Boundaries
PYQ
a
Originate at south pole and terminate at north pole
b
Pass through the magnet
c
Originate at north pole and terminate at south pole
d
Go away from both the poles
Also appeared in
79
What happened to the pressure of a sample of helium gas 200K to 300 K, with no change volume?
United Nations Framework Convention on Climate Change (UNFCCC)
PYQ
a
Pressure increases by a factor of 4
b
Pressure decreases by a factor of 4
c
Pressure decreases by a factor of 2
d
Pressure increases by a factor of 1.5
Also appeared in
80
Which of the following following is dimensionless quantity:
Guinness World Records (General Knowledge Focus)
PYQ
a
Power
b
Frequency
c
Refractive index
d
Impulse
Also appeared in
81
Alpha ray are nuclear radiations. They are in fact same as:
Guinness World Records (General Knowledge Focus)
PYQ
a
Hydrogen
b
Deuterium
c
Tritium
d
Helium
Also appeared in
82
When two bodies move towards each other with constant decreases at the rate of 6 m/sec, ___ they move in the same increases at the rate of 4 m/sec. calculate their velocities?
Major Cities and Urban Areas
PYQ
a
5m/sec, 1 m/sec
b
3 m/sec, 3 m/sec
c
6 m/sec, 1 m/sec
d
4 m/sec, 2 m/sec
Also appeared in
83
The magnetic field a produced in a solenoid depends on?
Guinness World Records (General Knowledge Focus)
PYQ
a
Its length
b
Its length and current in it
c
Its length and number of turns in it
d
The number of turns and current in it
Also appeared in
84
Equation of continuity is expressed as:
Guinness World Records (General Knowledge Focus)
PYQ
a
A₁V₂ = A₂V₁
b
A₁V₁ = A₂V₂
c
A₁H₂=A₂H₁
d
A₁H₁=A₂H₂
Also appeared in
85
The path difference for the consecutive interference is:
Guinness World Records (General Knowledge Focus)
PYQ
a
(n-1)A
b
(n+2)A
c
nA/2
d
2n/A
Also appeared in
86
The light exhibits the phenomena of constructive interference and time variation when it is ______ and ______.
Time Zones and Latitude–Longitude
PYQ
a
Monochromatic and in phase
b
Monochromatic and out of phase
c
In phase and non-monochromatic
d
Out of phase and non-monochromatic
Also appeared in
87
The distance between two consecutive antinodes is equal to?
Guinness World Records (General Knowledge Focus)
PYQ
a
λ / 2
b
λ / 4
c
λ / 6
d
λ / 8
Also appeared in
88
The charge on neutron is:
Guinness World Records (General Knowledge Focus)
PYQ
a
Zero
b
1.6 × 10⁻²¹ C
c
9.6 × 10⁻¹⁵ C
d
9.11 × 10⁻¹⁹ C
Also appeared in
89
When an applied stress changes the volume, the changes in volume are shown as:
United Nations Framework Convention on Climate Change (UNFCCC)
PYQ
a
Polymetric strain
b
Crystalline strain
c
Volumetric strain
d
Equal strain
Also appeared in
90
When fluid is incompressible, it means:
Time Zones and Latitude–Longitude
PYQ
a
Independent of coordinates
b
No internal frictional force
c
Independent of time
d
Its density remains constant
Also appeared in
91
S.I. unit of rate flow of a fluid =
Guinness World Records (General Knowledge Focus)
PYQ
a
meter / sec
b
meter² / sec
c
meter³ / sec
d
none of these
Also appeared in
About This Paper
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Topic Weightage
Guinness World Records (General Knowledge Focus)
48.4%
Financial Action Task Force (FATF)
13.2%
Weather, Atmosphere and Temperature
4.4%
Most Repeated GK MCQs from Past Papers
3.3%
Natural Resources
2.2%
Central American Integration System (SICA)
2.2%
Major Cities and Urban Areas
2.2%
United Nations Human Settlements Programme (UN-Habitat)
2.2%
United Nations Framework Convention on Climate Change (UNFCCC)
2.2%
Time Zones and Latitude–Longitude
2.2%
Changed Names of Countries and Cities
1.1%
Highest and Lowest Points
1.1%
World Leaders in News
1.1%
United Nations Industrial Development Organization (UNIDO)
1.1%
Famous Seas
1.1%
European Free Trade Association (EFTA)
1.1%
Earth’s Structure and Geological Features
1.1%
Common Market for Eastern and Southern Africa (COMESA)
1.1%
United Nations High Commissioner for Refugees (UNHCR)
1.1%
International Federation of Red Cross and Red Crescent Societies (IFRC)
1.1%
Non-Aligned Movement (NAM)
1.1%
Post Cold War World
1.1%
Food and Agriculture Organization (FAO)
1.1%
Geographic Extremes (Largest, Smallest, Deepest)
1.1%
Ocean Currents and Tides
1.1%
Important Lines and Boundaries
1.1%