Solved Past Paper
Sindh MDCAT Past Paper 2020
Practice and review Sindh MDCAT Past Paper 2020 with verified questions, correct answer keys, and detailed solutions.
Total Questions
169 Qs
Duration Limit
210 Min
Negative Mark
0.00
Attempt Count
0
Solved Questions & Explanations
169 questions (168 solved, 1 official sample questions)
1
When the temperature of the body surrounding rises, baby responds by:
Weather, Atmosphere and Temperature
PYQ
a
Vasoconstriction
b
Vasodilation
c
Shivering
d
Raising body hairs
Also appeared in
2
The excretion of hypertonic urine in humans is associated best with the:
United Nations Human Settlements Programme (UN-Habitat)
PYQ
a
Glomerular capsule
b
Proximal convoluted tubule
c
Loop of Henle
d
Distal convoluted tubule
Also appeared in
3
In humans, the temperature regulation control center is located in:
Weather, Atmosphere and Temperature
PYQ
a
Kidneys
b
Brain
c
Lungs
d
Liver
Also appeared in
4
As an excretory organ, liver:
Guinness World Records (General Knowledge Focus)
PYQ
a
Detoxifies many chemical poisons
b
Produces ammonia for excretion by the kidneys
c
Produces urine and uric nitrogen of amino acids
d
All of above
Also appeared in
5
The active uptake of sodium in the ascending limb or thick loop of Henle is promoted by the action of:
Financial Action Task Force (FATF)
PYQ
a
Aldosterone
b
Thyroxine
c
ADH
d
Cortisone
Also appeared in
6
Which of the following muscles are considered as "Voluntary Muscles"?
Guinness World Records (General Knowledge Focus)
PYQ
a
Smooth muscles
b
Cardiac muscles
c
Skeletal muscles
d
Glandular muscles
Also appeared in
7
Which types one of the following "myogenic" type of muscle?
Guinness World Records (General Knowledge Focus)
PYQ
a
Smooth muscles
b
Cardiac muscles
c
Skeletal muscles
d
Glandular muscles
Also appeared in
8
What do we call the cell surface membrane of a muscle fiber?
Guinness World Records (General Knowledge Focus)
PYQ
a
Sarcolemma
b
Plasma membrane
c
Sarcoplasm
d
Myofibrils
Also appeared in
9
Which of the following neurotransmitters function, both neurotransmitter and hormones, decreasing our perception of pain?
Guinness World Records (General Knowledge Focus)
PYQ
a
Epinephrine
b
Serotonin
c
Dopamine
d
Endorphins
Also appeared in
10
Which body function is controlled through a positive feedback mechanism?
Weather, Atmosphere and Temperature
PYQ
a
Labor contractions
b
Body Temperature
c
Insulin production
d
Thyroxine release
Also appeared in
11
Which of the following is common to all neurons?
Common Market for Eastern and Southern Africa (COMESA)
PYQ
a
A cell which contains a nucleus
b
A thick myelin sheath
c
Presence of node of Ranvier
d
Presence of Schwann cells
Also appeared in
12
Neurons are cells adapted for the rapid transmission of electrical impulses. To do this, they have long thin process called:
Guinness World Records (General Knowledge Focus)
PYQ
a
Axons
b
Dendrites
c
Myelin sheath
d
Schwann cells
Also appeared in
13
______ is a junction between two neurons or between a motor neuron and a muscle cell:
Guinness World Records (General Knowledge Focus)
PYQ
a
Impulse
b
Synapse
c
Axon
d
Cleft
Also appeared in
14
Which of the following represents the changes that occur in the ovary and the uterus approximately every 28 days involving ovulation with the breakdown and loss of the lining of the uterus?
United Nations Framework Convention on Climate Change (UNFCCC)
PYQ
a
Ovulation
b
Menstrual cycle
c
Uterine Cycle
d
Embryo formation
Also appeared in
15
Which of the following diseases is sexually transmitted?
Famous Seas
PYQ
a
Tuberculosis
b
AIDS
c
Dengue fever
d
Cholera
Also appeared in
16
Which of the following hormones of the pituitary gland regulate the menstrual cycle?
Guinness World Records (General Knowledge Focus)
PYQ
a
Follicle stimulating hormone and estrogen
b
Luteinizing hormone and estrogen
c
Follicle stimulating hormone and luteinizing hormone
d
Estrogen and progesterone
Also appeared in
17
Haemophilia A and B, colour blindness and testicular feminization are example of:
Guinness World Records (General Knowledge Focus)
PYQ
a
X - linked dominant trait
b
Y - linked recessive trait
c
Pseudotausosomal trait
d
None of these
Also appeared in
18
Which traits are most likely to affect men than women?
Most Repeated GK MCQs from Past Papers
PYQ
a
The form of appearance of a trait
b
X linked dominant
c
Autosomal dominant
d
Autosomal recessive
Also appeared in
19
Alleles both have an effect on the phenotype heterozygotic organism:
Multi-Polar World
PYQ
a
Dominant
b
Recessive
c
Multiple
d
Co-dominant
Also appeared in
20
When both the allele of a genes are same, the organism is said to be:
Official Sample (Unsolved)
Guinness World Records (General Knowledge Focus)
PYQ
a
Heterozygous
b
Genotype
c
Homozygous
d
Phenotype
Official university sample test — answer key not published in admissions prospectus.
Propose Solution
Also appeared in
21
In which type of cell, Cell wall is not present?
Guinness World Records (General Knowledge Focus)
PYQ
a
Plant cell
b
Fungal cells
c
Bacterial cells
d
Liver cells
Also appeared in
22
70S size ribosomes are found in the cells of:
Guinness World Records (General Knowledge Focus)
PYQ
a
Algae
b
Protozoans
c
Fungi
d
Bacteria
Also appeared in
23
According to the fluid mosaic model of cell membrane, which zone is embedded inside?
Guinness World Records (General Knowledge Focus)
PYQ
a
Hydrophobic
b
Globular
c
Hydrophilic
d
Filamentous
Also appeared in
24
The membrane separating the vacuole from cytoplasm is called:
Guinness World Records (General Knowledge Focus)
PYQ
a
Cristae
b
Cisternae
c
Tonoplast
d
Vacuolar membrane
Also appeared in
25
Select the one which is not a function of smooth endoplasmic reticulum (SER)?
Guinness World Records (General Knowledge Focus)
PYQ
a
Metabolism of lipids
b
Transmission of impulses
c
Transport of materials
d
Processing of glycoproteins
Also appeared in
26
Which of the following organelles are involved in the synthesis of plant cell wall?
Guinness World Records (General Knowledge Focus)
PYQ
a
Endoplasmic reticulum
b
Golgi complex
c
Lysosomes
d
Peroxisomes
Also appeared in
27
Which property of water helps to maintain the integrity of cell membranes?
World Intellectual Property Organization (WIPO)
PYQ
a
Specific heat capacity
b
Hydrogen bonding
c
Cohesion and adhesion
d
Hydrophobic exclusion
Also appeared in
28
Water act as universal solvent because of:
Multi-Polar World
PYQ
a
Heat of vaporization
b
Hydrogen bonding
c
High polarity
d
Cohesion and adhesion
Also appeared in
29
Lipids store double amount of energy as compared to carbohydrates because of:
United Nations High Commissioner for Refugees (UNHCR)
PYQ
a
High proportion of oxygen
b
High C-O ratio
c
Low proportion of carbon
d
High proportion of C-H
Also appeared in
30
Which of the following is an unsaturated fatty acid?
Guinness World Records (General Knowledge Focus)
PYQ
a
Oleic acid
b
Palmitic acid
c
Butyric acid
d
Acetic acid
Also appeared in
31
Monosaccharides have a general formula represented by:
Guinness World Records (General Knowledge Focus)
PYQ
a
Cn(H2O)n
b
C(H2O)n
c
C2(HO)n
d
C2(H2O)n
Also appeared in
32
NAD is an example of:
Guinness World Records (General Knowledge Focus)
PYQ
a
Mononucleotide
b
Dinucleotide
c
Trinucleotide
d
Tetranucleotide
Also appeared in
33
Lock and key model of enzyme action proposed by Emil Fischer suggested that:
Financial Action Task Force (FATF)
PYQ
a
Enzymes are unbiased for the substrate
b
Enzymes are not restricted to one reaction type
c
Enzymes are restricted to one reaction type
d
An enzyme can catalyze variety of reactions
Also appeared in
34
Most enzymes have an optimum temperature of around:
Most Repeated GK MCQs from Past Papers
PYQ
a
20°C
b
30°C
c
40°C
d
50°C
Also appeared in
35
Enzymes work by lowering the ______ of reactions that catalyze:
International Atomic Energy Agency (IAEA)
PYQ
a
Kinetic energy
b
Activation energy
c
Heat energy
d
Potential energy
Also appeared in
36
First stable compound during Calvin cycle is:
Guinness World Records (General Knowledge Focus)
PYQ
a
3-phosphoglycerate
b
Glyceraldehyde 3-phosphate
c
1,3 bisphosphoglycerate
d
Ribulose biphosphate
Also appeared in
37
What is the function of ribulose?
Guinness World Records (General Knowledge Focus)
PYQ
a
Intermediate in photosynthesis
b
Respiratory fuel
c
Intermediate in cellular respiration
d
Component of DNA and RNA
Also appeared in
38
Which of the following processes does not need pyruvic acid as a substrate?
Guinness World Records (General Knowledge Focus)
PYQ
a
Alcohol fermentation
b
Calvin cycle
c
Aerobic respiration
d
Lactic acid fermentation
Also appeared in
39
Which of the following is a copper containing protein in electron transport chain?
Guinness World Records (General Knowledge Focus)
PYQ
a
Plastoquinone
b
Cytochrome-C
c
Plastocyanin
d
Ferredoxin
Also appeared in
40
In electron transport chain, ATP synthesis takes place when electron moves from:
Central American Integration System (SICA)
PYQ
a
Primary electron acceptor (PEA) to plastoquinone
b
Plastoquinone (Pq) to cytochromes
c
Cytochromes to plastocyanin
d
Plastocyanin (Pe) to photosystem I (PS-I)
Also appeared in
41
Law of independent assortment" states:
Commonwealth of Independent States (CIS)
PYQ
a
The each pair of alleles assort independent of other pairs of alleles during gamete formation
b
That allele for each pair of contrasting trait have unequal probability to assort with the alleles of other pairs
c
That coexisting alleles for each trait segregate (separate) from each other at meiosis so that each gamete receives only one of the two alleles
d
That pertain to inheritance of single trait (monohybrid cross)
Also appeared in
42
Phenotype is ?
Guinness World Records (General Knowledge Focus)
PYQ
a
The genetic complement ie the genes in an individual for a particular trait
b
The form of appearance of a trait
c
Partner of gene pair
d
The position of a gene on the chromosome
Also appeared in
43
In complete dominance :
Guinness World Records (General Knowledge Focus)
PYQ
a
Gene mutation may produce many different alleles of a gene
b
One alleles (R) is completely dominant over the other (r) and the presence of recessive allele is functionally hidden the heterozygote (Rr) has the same sound phenotype (RR) heterozygote
c
Different alleles of a gene are both expressed in heterozygous condition
d
The phenotype of the heterozygote is intermediate between phenotypes of the homozygotes
Also appeared in
44
Which one of the following is found in both messenger RNA and DNA of a mammalian cell?
Earth’s Structure and Geological Features
PYQ
a
Thymine
b
Ribose sugar
c
Double helical structure
d
Sugar- phosphate backbone
Also appeared in
45
The cells in our body are all genetically identical apart from the ?
Guinness World Records (General Knowledge Focus)
PYQ
a
White blood cells
b
Somatic cells
c
Muscle fibers
d
Reproductive cells
Also appeared in
46
Transcription is the process in which an RNA copy of the DNA sequence and coding the gene is produced with help of an enzyme called:
Guinness World Records (General Knowledge Focus)
PYQ
a
DNA transcriptase
b
DNA polymerases
c
RNA transcriptase
d
RNA polymerase
Also appeared in
47
The particular array of chromosomes that an individual process is called its
Guinness World Records (General Knowledge Focus)
PYQ
a
Allele
b
Karyotype
c
Phenotype
d
Genotype
Also appeared in
48
During meiosis, the homologous chromosomes comes together and form pairs this process is called
International Federation of Red Cross and Red Crescent Societies (IFRC)
PYQ
a
Linkage
b
Pairing
c
Synapsis
d
Crossing over
Also appeared in
49
At what phase the DNA content of a cell is doubled?
Guinness World Records (General Knowledge Focus)
PYQ
a
Interphase
b
Prophase
c
Telophase
d
Anaphase
Also appeared in
50
Which statement correctly describes transcription of DNA?
Guinness World Records (General Knowledge Focus)
PYQ
a
It is a semi conservative process
b
It results in increased DNA synthesis
c
It produces messenger RNA
d
It produces amino acids
Also appeared in
51
This theory says that "mitochondria and chloroplast area in effect ancient bacteria which now live inside the large cells" ?
Area, Population and Official Languages
PYQ
a
Darwin's theory of evolution
b
Neo-Darwinism
c
Lamarckism
d
Endosymbiont theory
Also appeared in
52
The organs which are similar but differ in structure are called ?
Earth’s Structure and Geological Features
PYQ
a
Analogous organs
b
Divergent evolution
c
Homologous organs
d
Convergent evolution
Also appeared in
53
___ occurs because natural selection gives some alleles a batter chance of survival than others ?
Natural Resources
PYQ
a
Crossing over
b
Evolution
c
Artificial selection
d
Fitness
Also appeared in
54
The DNA that has been altered and which now contains length of nucleotides from two different organisms is called a ?
Ocean Currents and Tides
PYQ
a
Vector
b
Combined DNA
c
Recombinant DNA
d
Plasmid
Also appeared in
55
It is a method for rapid production of a very large number of copies of a particular fragment of DNA ?
Financial Action Task Force (FATF)
PYQ
a
Gel electrophoresis
b
DNA extraction
c
Recombination
d
Polymerase chain reaction
Also appeared in
56
What is the effect of DNA ligase?
Guinness World Records (General Knowledge Focus)
PYQ
a
DNA is broken up at specific sites
b
DNA fragments are joined together
c
DNA replication occurs
d
DNA transcription occurs
Also appeared in
57
Which of the following is the components/tools of recombinant DNA technology?
Central American Integration System (SICA)
PYQ
a
Gene of interest
b
Molecular scissors
c
Molecular glue and expression system
d
All of the above
Also appeared in
58
Gel electrophoresis is a technique:
Group of Seven (G7)
PYQ
a
Employed by forensic scientists to assist in the identification of the individuals by their respective type of DNA
b
Collect all the genes found in one complete set of chromosomes
c
Is a technique to separate different size fragment of charge bearing polymers (proteins, RNA or DNA)
d
Grows single cells of a group of cells in a glass ware on artificial medium under aseptic conditions
Also appeared in
59
Transgenic organisms:
Past Exam Questions on Foreign Phrases
PYQ
a
Have a foreign gene inserted into them
b
Have an important role in the large scale production of medicinal products
c
Are considered beneficial to humans
d
All of the above
Also appeared in
60
Which of the following is not necessary for PCR to occur?
Ocean Currents and Tides
PYQ
a
dATP
b
Primers
c
DNA fragments
d
Ribonucleotides
Also appeared in
61
The end product of glycolysis in aerobic respiration is:
Guinness World Records (General Knowledge Focus)
PYQ
a
Ethanol and carbon dioxide
b
Lactate
c
Pyruvate
d
Acetyl CoA
Also appeared in
62
Which of the following is not related to enveloped virus?
Time Zones and Latitude–Longitude
PYQ
a
They survive for a short time
b
Their envelope is sensitive to sunlight
c
They are tolerant to antidotes
d
Envelope is derived from host
Also appeared in
63
Numerous opportunistic diseases might attack a person suffering from which of the following diseases?
Famous Seas
PYQ
a
Measles
b
Influenza
c
Hepatitis A
d
AIDS
Also appeared in
64
The complete, mature and infectious virus particle is known as:
Guinness World Records (General Knowledge Focus)
PYQ
a
Venome
b
Genome
c
Virion
d
Capsid
Also appeared in
65
Which of the following is NOT TRUE about Human Immunodeficiency virus (HIV)?
United Nations Human Settlements Programme (UN-Habitat)
PYQ
a
It is retrovirus
b
It is surrounded by an envelope
c
It does not cause AIDS
d
It causes the deficiency of the human immune system
Also appeared in
66
Select a method which cause the oxidation of constituent of a bacterial cell:
Guinness World Records (General Knowledge Focus)
PYQ
a
Steam
b
Filtration
c
Dry heat
d
Radiation
Also appeared in
67
Which of the following is TRUE about the structure of a typical bacterium?
Earth’s Structure and Geological Features
PYQ
a
It has a cell wall
b
It has cytoplasm
c
It has genetic material
d
All of the above
Also appeared in
68
Red algae do not contribute towards:
Guinness World Records (General Knowledge Focus)
PYQ
a
Making coral reefs
b
Forming limestone deposits
c
Making fertilizers
d
Forming chalk deposits
Also appeared in
69
Which of the following is true about amoeba?
Famous Seas
PYQ
a
They have flagella
b
They are multicellular
c
They do not cause any disease in humans
d
They move by forming specialized cytoplasmic projections called pseudopodia
Also appeared in
70
The directional movement toward or away from the stimulus is called:
Non-Aligned Movement (NAM)
PYQ
a
Tropism
b
Orientation
c
Taxis
d
Non orientation
Also appeared in
71
Photophosphorylation takes place in the of the chloroplasts.
Guinness World Records (General Knowledge Focus)
PYQ
a
Stroma
b
Granum
c
Inner membrane
d
Outer membrane
Also appeared in
72
Select an annioic from the following:
World Leaders in News
PYQ
a
Snake
b
Frog
c
Parrot
d
Crocodile
Also appeared in
73
In roots the apoplast pathway of water is disrupted when water reaches:
Guinness World Records (General Knowledge Focus)
PYQ
a
Plasmodesmata
b
Cortex
c
Endodermis
d
Pith
Also appeared in
74
Regarding structure of human heart chordae tendinea are present in:
Earth’s Structure and Geological Features
PYQ
a
Ventricles
b
Pulmonary valve
c
Atria
d
Aortic valve
Also appeared in
75
The only vein in human body carrying oxygenated blood is:
United Nations Human Settlements Programme (UN-Habitat)
PYQ
a
Femoral
b
Pulmonary
c
Renal
d
Iliac
Also appeared in
76
The cells which play very important in developing immunity are:
Important Lines and Boundaries
PYQ
a
Lymphocytes
b
Monocytes
c
Neutrophils
d
Thrombocytes
Also appeared in
77
Which of the following blood vessels have the highest pressure of blood?
Highest and Lowest Points
PYQ
a
Aorta
b
Pulmonary arteries
c
Pulmonary veins
d
Vena Cava
Also appeared in
78
Autoimmune disease act at the principle of:
Famous Seas
PYQ
a
Self against antigens
b
Antigens against self
c
Self against self
d
Antigens self-destroyed
Also appeared in
79
In human heart, the left atrium receives:
United Nations Human Settlements Programme (UN-Habitat)
PYQ
a
The superior Vena Cava
b
The inferior Vena Cava
c
The Coronary sinus
d
The four pulmonary veins
Also appeared in
80
Antibodies are manufactured in:
Guinness World Records (General Knowledge Focus)
PYQ
a
T-lymphocytes
b
Red blood cells
c
Platelets
d
B-Lymphocytes
Also appeared in
81
Alkyl halides involving -C -X bond breakage and -C -Nu bond formation ?
Guinness World Records (General Knowledge Focus)
PYQ
a
SN1
b
SN2
c
E1
d
E2
Also appeared in
82
R-X reaction with alcohols forms:
Financial Action Task Force (FATF)
PYQ
a
R-OH
b
ROR
c
R-X-OH
d
RH
Also appeared in
83
IUPAC name of C6H5O(CH3)2 is:
Guinness World Records (General Knowledge Focus)
PYQ
a
2-methyl-3-hexanone
b
2,6-Dimethyl cyclohexanone
c
3-methyl cyclohexanone
d
4-methyl-3-hexanon
Also appeared in
84
Phenol is known as:
Guinness World Records (General Knowledge Focus)
PYQ
a
Carpolic acid
b
Carbonylic Acid
c
Carbolic Acid
d
Carboxylic Acid
Also appeared in
85
Phenol is more acidic than alcohols because of the following reasons:
Group of Seven (G7)
PYQ
a
Delocalization of negative charge in the ring
b
Delocalization of negative charge in the OH group
c
Delocalization of positive charge on the carbon atom in ring
d
Delocalization of positive charge in the OH group
Also appeared in
86
Which of the following reagent is used to separate purify carbonyl and non-Carbony compounds?
Guinness World Records (General Knowledge Focus)
PYQ
a
HCN
b
BrMgCH3
c
NaHSO3
d
H2O
Also appeared in
87
Which of the following is the strongest acid?
World Leaders in News
PYQ
a
Propionic acid
b
Fluoroethanoic acid
c
Nitro Ethanoic acid
d
Trichloroethanoic acid
Also appeared in
88
Hydrolysis of acyl chloride results in the formation of:
Guinness World Records (General Knowledge Focus)
PYQ
a
Acid anhydride
b
Carboxylic acid
c
Amides
d
Esters
Also appeared in
89
The exact reactivity order for carboxylic acid derivatives is:
Guinness World Records (General Knowledge Focus)
PYQ
a
Amide >acylchloride> ester
b
Acychloride> anhydride > Ester
c
Anhydride >acylchloride> ester
d
Ester > anhydride >acylchloride
Also appeared in
90
Based on the physio-chemical properties, proteins may be classified into the following types:
Guinness World Records (General Knowledge Focus)
PYQ
a
Simple proteins
b
Compound proteins
c
Derived proteins
d
All of the above
Also appeared in
91
Based on function, thyroxin can be classified as:
Guinness World Records (General Knowledge Focus)
PYQ
a
Hormonal protein
b
Structural protein
c
Transport protein
d
Genetic protein
Also appeared in
92
L-Asparaginase enzyme has been used for the treatment of:
Famous Seas
PYQ
a
Jaundice
b
Blood cancer
c
Rickets
d
Heart disease
Also appeared in
93
Potassium, Rubidium, Cesium react with oxygen to form which types of oxides?
Guinness World Records (General Knowledge Focus)
PYQ
a
Peroxide
b
Superoxide
c
Suboxide
d
Normal Oxide
Also appeared in
94
Magnesium reacts with Nitrogen to form:
Guinness World Records (General Knowledge Focus)
PYQ
a
Mg2N2
b
Mg3N2
c
MgN2
d
MgN
Also appeared in
95
Densities of alkali metals are low due to:
International Atomic Energy Agency (IAEA)
PYQ
a
Weak intermolecular forces
b
Large atomic volume
c
Smaller size
d
ns1 configuration
Also appeared in
96
In 3rd series of transition elements paramagnetic behaviour is maximum for Mn+2 and:
Guinness World Records (General Knowledge Focus)
PYQ
a
Ti^3+
b
V^3+
c
Zn^+2
d
Cr^3+
Also appeared in
97
Electronic configuration of chromium (Proton number 24) is:
Guinness World Records (General Knowledge Focus)
PYQ
a
[Ar} 3d^5 4S^2
b
[Ar] 3d^5 4S^1
c
[Ar] 3d^4 4S^2
d
[Ar] 3d^6 4S^2
Also appeared in
98
The transition element which does not show variable valency is:
Guinness World Records (General Knowledge Focus)
PYQ
a
Cu
b
Sc
c
Zn
d
Cr
Also appeared in
99
Select the organic compound which belongs to Arene family:
Guinness World Records (General Knowledge Focus)
PYQ
a
CH2=CH2
b
CH3-O-CH3
c
CH3-NH2
d
C6H6
Also appeared in
100
The type of isomerism existing in a compound of molecular formula C2H6O is:
Group of Seven (G7)
PYQ
a
Functional group
b
Position
c
Chain
d
Metamerism
Also appeared in
101
General formula of cycloalkane is?
Guinness World Records (General Knowledge Focus)
PYQ
a
CnH2n+2
b
CnH2n
c
CnH2n+1
d
CnH2n-2
Also appeared in
102
Electrophile in sulphonation of benzene is:
Guinness World Records (General Knowledge Focus)
PYQ
a
HSO4-
b
H2SO4
c
SO3
d
HSO3-
Also appeared in
103
Acetonbenone can be formed by which of the following reaction of benzene?
Financial Action Task Force (FATF)
PYQ
a
Alkylation
b
Acylation
c
Halogenation
d
Nitration
Also appeared in
104
In alkanes, each Carbon has hybridization:
Guinness World Records (General Knowledge Focus)
PYQ
a
sp³
b
sp
c
sp²
d
dsp
Also appeared in
105
When CH₃ is attached with the benzene ring, it makes the ring:
Guinness World Records (General Knowledge Focus)
PYQ
a
Good electrophile
b
Good nucleophile
c
Resonance hybrid
d
Extraordinary stable
Also appeared in
106
Which of the following reaction has greater Kp than Kc (Kp > Kc)?
Financial Action Task Force (FATF)
PYQ
a
2NO + Cl₂ = 2NOCl
b
2SO2 + O₂ = 2SO3
c
2NOCl = 2NO + Cl₂
d
NO2 + 3H2 = 2NH3
Also appeared in
107
The equation N2g + 3H2g = 2NH3, represents:
Guinness World Records (General Knowledge Focus)
PYQ
a
Haber's process
b
Contact process
c
Solvay process
d
Avogadro's law
Also appeared in
108
The unit of the rate constant is the same as that of the rate of reaction in:
Financial Action Task Force (FATF)
PYQ
a
Zero order reaction
b
First order reaction
c
Second order reaction
d
Third order reaction
Also appeared in
109
The study of rates of chemical reactions and the factors that affect the rates of chemical reactions is known as:
World Leaders in News
PYQ
a
Thermodynamics
b
Stoichiometry
c
Electrochemistry
d
Chemical kinetics
Also appeared in
110
For the reaction A(g) → products, When the concentration of A(g) doubles, the rate of reaction increases four folds, which means it is:
Financial Action Task Force (FATF)
PYQ
a
Negative order reaction
b
First order reaction
c
Zero order reaction
d
Second order reaction
Also appeared in
111
For which of the following order of the reaction, rate of reaction is inversely proportional to the concentration of reaction?
Financial Action Task Force (FATF)
PYQ
a
1st order reaction
b
2nd order reaction
c
Negative order of reaction
d
Zero order of reaction
Also appeared in
112
The thermal energy at constant pressure is called:
International Atomic Energy Agency (IAEA)
PYQ
a
Enthalpy
b
Internal energy
c
Heat capacity
d
Work done
Also appeared in
113
Born-Haber cycle is used to determine the lattice energies of:
Guinness World Records (General Knowledge Focus)
PYQ
a
Molecular solids
b
Metallic solids
c
Ionic solids
d
Covalent solids
Also appeared in
114
One calorie is equal to:
Guinness World Records (General Knowledge Focus)
PYQ
a
4.18 KJ
b
4.18 J
c
0.418 KJ mol
d
0.418 KJ
Also appeared in
115
The oxidation state of 'S' in the (S2O3)-2 is:
Guinness World Records (General Knowledge Focus)
PYQ
a
+4
b
+6
c
-2
d
+2
Also appeared in
116
The common oxidation number of halogens is:
Common Market for Eastern and Southern Africa (COMESA)
PYQ
a
-1
b
+1
c
-2
Also appeared in
117
During oxidation process, oxidation number of an element:
Guinness World Records (General Knowledge Focus)
PYQ
a
Decreases
b
Increases
c
Remains constant
d
Both A & B
Also appeared in
118
Which of the following has the highest value of electronegativity?
Highest and Lowest Points
PYQ
a
l
b
Cl
c
Br
d
F
Also appeared in
119
Which of the following hybrid orbitals has maximum 'S'-character?
Guinness World Records (General Knowledge Focus)
PYQ
a
sp²-hybrid orbital
b
sp²-hybrid orbital
c
sp-hybrid orbital
d
dsp²-hybrid orbital
Also appeared in
120
The first ionization energy is maximum for:
International Atomic Energy Agency (IAEA)
PYQ
a
Na
b
Mg
c
Al
d
K
Also appeared in
121
The efficiency of chemical reaction can be expressed as:
Financial Action Task Force (FATF)
PYQ
a
Theoretical yield
b
Actual yield
c
% yield
d
Maximum yield
Also appeared in
122
In a vessel, 10g N2, 10g H and 10g O2 are present. Which one will have least number of atoms?
East African Community (EAC)
PYQ
a
H2
b
N2
c
O2
d
Both N2 & H2
Also appeared in
123
The empirical formula of Glucose C6H12O6 is:
Guinness World Records (General Knowledge Focus)
PYQ
a
C6H12O16
b
CH2O2
c
CHO
d
CH2O
Also appeared in
124
The relationship between quantum number n and I is:
Relations Between Major Powers
PYQ
a
n = 1 - 1
b
I = n - 2
c
I = n - 1
d
n = 1 - 2
Also appeared in
125
Quantum number values for '2p' orbitals are:
Guinness World Records (General Knowledge Focus)
PYQ
a
n = 2, I = 1
b
n = 1, I = 2
c
n = 1, I = 0
d
n = 2, I = 0
Also appeared in
126
Which pair has 1 electron in its 's' orbital?
Guinness World Records (General Knowledge Focus)
PYQ
a
Li, Fe
b
Na & Cr
c
K & Mn
d
H & He
Also appeared in
127
Which of the following has the lowest e/m ratio?
Highest and Lowest Points
PYQ
a
Li+2
b
H+1
c
He
d
Be
Also appeared in
128
According to the general gas equation density of an ideal gas depends upon:
Weather, Atmosphere and Temperature
PYQ
a
Pressure
b
Temperature
c
Molar mass of the gas
d
All of above
Also appeared in
129
The actual volume of gas molecules is considered negligible at following pressures:
Guinness World Records (General Knowledge Focus)
PYQ
a
2 atm
b
4 atm
c
6 atm
d
8 atm
Also appeared in
130
CO2 and SO2 both are triatomic molecules but heat of vaporization of SO2 is greater than that of CO2 due to:
Multi-Polar World
PYQ
a
High electronegativity of S
b
Greater size of SO2
c
SO2 is polar and CO2 is non-polar
d
SO2 is more acidic than CO2
Also appeared in
131
Which of the following has the lowest vapour pressure at 20°C?
Highest and Lowest Points
PYQ
a
Diethyl ether
b
Chloroform
c
Carbon tetrachloride
d
Water
Also appeared in
132
Which of the following is not a molecular solid?
Guinness World Records (General Knowledge Focus)
PYQ
a
Bromine
b
Sulphur
c
Phosphorus
d
Carbon dioxide
Also appeared in
133
The lattice energy is also called as:
International Atomic Energy Agency (IAEA)
PYQ
a
Bond energy
b
Energy of affinity
c
Crystal energy
d
Potential energy
Also appeared in
134
For a gaseous phase reaction, when number of moles of reactants and products are equal:
Financial Action Task Force (FATF)
PYQ
a
The values of Kp and Kc are different
b
The values of Kp is greater than Kc
c
The values of Kc is greater than Kp
d
The values of Kp and Kc are the same
Also appeared in
135
Purification of table salt (NaCl) by passing HCl gas through its saturated aqueous solution is an example of:
Financial Action Task Force (FATF)
PYQ
a
Law of mass action
b
Hess's law
c
Common ion effect
d
Henry's law
Also appeared in
136
In translation from grid station, power losses are minimised by:
Guinness World Records (General Knowledge Focus)
PYQ
a
Increasing current
b
Decreasing current
c
Increasing resistance
d
Increasing voltage
Also appeared in
137
The domestic electricity supply has a frequency of:
Guinness World Records (General Knowledge Focus)
PYQ
a
25 Hz
b
50 Hz
c
100 Hz
d
150 Hz
Also appeared in
138
PIV stands for:
Guinness World Records (General Knowledge Focus)
PYQ
a
Positive Inverse voltage
b
Power integrated voltage
c
Peak inverse voltage
d
Peak integrated voltage
Also appeared in
139
In full wave rectification, the diodes are used:
Guinness World Records (General Knowledge Focus)
PYQ
a
1
b
2
c
3
d
4
Also appeared in
140
The wavelength associated with an electron is of the order of:
Guinness World Records (General Knowledge Focus)
PYQ
a
Visible light
b
X - rays
c
Radio waves
d
Infrared
Also appeared in
141
Which Photon carries the most energy?
Most Repeated GK MCQs from Past Papers
PYQ
a
Blue
b
Voilet
c
Red
d
Green
Also appeared in
142
Which one of the following series lies in the ultraviolet region?
Guinness World Records (General Knowledge Focus)
PYQ
a
Balmer series
b
Paschen series
c
Lyman series
d
Bracket series
Also appeared in
143
The main difference between X-rays and gamma rays is?
International Atomic Energy Agency (IAEA)
PYQ
a
Frequency
b
Wavelength
c
Energy
d
Origin
Also appeared in
144
There are initially 400 atoms in a radioactive sample, what would be the number of atoms after three half-life?
Guinness World Records (General Knowledge Focus)
PYQ
a
25
b
50
c
200
d
400
Also appeared in
145
While using radiation therapy, cancerous thyroid is treated with ______ radioisotope:
Guinness World Records (General Knowledge Focus)
PYQ
a
Carbon
b
235-Uranium
c
Thorium
d
Iodine-131
Also appeared in
146
In capacitors, energy is stored in the form of:
International Atomic Energy Agency (IAEA)
PYQ
a
Gravitation energy
b
Kinetic energy
c
Electric intensity
d
Magnetic induction
Also appeared in
147
Ohm time's farads is equivalent to:
Time Zones and Latitude–Longitude
PYQ
a
Time
b
Charge
c
Distance
d
Capacitors
Also appeared in
148
One-kilowatt hour is commonly termed as one commercial unit of electric energy which is equal to:
International Atomic Energy Agency (IAEA)
PYQ
a
3.6 x 10^3 J
b
3.6 x 10^4 J
c
3.6 x 10^5 J
d
3.6 x 10^6 J
Also appeared in
149
When a wire is compressed and its radius become 2R then its resistance will be:
Guinness World Records (General Knowledge Focus)
PYQ
a
16 R
b
4 R
c
1/16 R
d
1/4 R
Also appeared in
150
One of the following is an ohmic device:
Guinness World Records (General Knowledge Focus)
PYQ
a
Filament bulb
b
Semiconductor diode
c
Transistors
d
Copper wire
Also appeared in
151
The change in resistance of metallic conductor at temperature below 0°C is:
Weather, Atmosphere and Temperature
PYQ
a
Non linear
b
Curve
c
Linear
d
Curvilinear
Also appeared in
152
When current are flowing through two long parallel wires same direction electric field between them:
Guinness World Records (General Knowledge Focus)
PYQ
a
Strong
b
Weak
c
Remains same
d
Infinite
Also appeared in
153
Magnetic flux is maximum when angle between magnetic field and vector area is:
Area, Population and Official Languages
PYQ
a
0°C
b
45°C
c
90°C
d
180°C
Also appeared in
154
Transformer is a device which steps up or steps down the input: A. Current
International Atomic Energy Agency (IAEA)
PYQ
a
Current
b
Voltage
c
Energy
d
Power
Also appeared in
155
If a stationary bar magnet is placed near a coil at rest maximum lines of force pass through the coil, the Galvanometer shows:
Important Lines and Boundaries
PYQ
a
Maximum current
b
Minimum current
c
No current
d
Intermediate value of current
Also appeared in
156
We prefer fruits ______ sweets.
Guinness World Records (General Knowledge Focus)
PYQ
a
To
b
On
c
Over
d
From
Also appeared in
157
Choose the correct spelling:
Guinness World Records (General Knowledge Focus)
PYQ
a
Axantuated
b
Accenchuated
c
Exantuated
d
Accentuated
Also appeared in
158
The Headmaster ______ to speak to you.
Guinness World Records (General Knowledge Focus)
PYQ
a
Want
b
Wants
c
Is wanting
d
Was wanting
Also appeared in
159
Choose the correct option: Knowledge and wisdom ______ no time for connection.
Guinness World Records (General Knowledge Focus)
PYQ
a
Have
b
Has
c
Had
d
Are
Also appeared in
160
Identify the errors and choose the correct option:
United Nations High Commissioner for Refugees (UNHCR)
PYQ
a
I hope this letter will find you in good of high spirits
b
I hope this letter finds you in best of your spirit
c
I hope letter finds you in the best of spirits
d
I hope the letter found you in greatest of spirits
Also appeared in
161
Fill in the blank with the appropriate article as required. ___Umbrella is of no avail against a thunderstorm.
Guinness World Records (General Knowledge Focus)
PYQ
a
The
b
A
c
An
d
No article required
Also appeared in
162
Choose the correct sentence:
Guinness World Records (General Knowledge Focus)
PYQ
a
I wish I have been a millionaire
b
I wish I am being a millionaire
c
I wish I were a millionaire
d
I wish I was millionaire
Also appeared in
163
Pick the correct option:
Guinness World Records (General Knowledge Focus)
PYQ
a
No star is brighter than the moon
b
No star is more bright than the moon
c
No star is brighter then the moon
d
No star is brighter than moon
Also appeared in
164
Choose the correctly structured sentence:
Earth’s Structure and Geological Features
PYQ
a
Had he lived in England he would miss his family
b
Had he lived in England, he would have missed his family
c
Had he lives in England he had missed his family sin England
d
Had he live in England he will missed his family
Also appeared in
165
She always carried an umbrella. The sentence indicates tense.
Guinness World Records (General Knowledge Focus)
PYQ
a
Present tense
b
Past Simple
c
Past perfect
d
Present perfect
Also appeared in
166
Ahmed ______ me for a long time.
Time Zones and Latitude–Longitude
PYQ
a
Know
b
Have known
c
Known
d
Knew
Also appeared in
167
Choose the correctly punctuated sentence:
Guinness World Records (General Knowledge Focus)
PYQ
a
What a fall was there, my countrymen! Long live the king!
b
What a fall was there! My countrymen. Long live the King!
c
What a fall was there, my countrymen, Long live the king.
d
What a fall was there, my countrymen, Long live the king
Also appeared in
168
Choose the correct option:
Guinness World Records (General Knowledge Focus)
PYQ
a
He and I was playing
b
He and I were playing
c
He and I were being playing
d
He and I was being playing
Also appeared in
169
Not only the parents but also their ______ son for interview.
Guinness World Records (General Knowledge Focus)
PYQ
a
Has called
b
Have called
c
Have been called
d
Has been called
Also appeared in
About This Paper
This resolved pre-test includes authentic questions curated from recruitment syllabus parameters. By selecting the Attempt Online mode, you will trigger a simulated interface featuring keyboard shortcut mapping, sectional division, flagging panels, and persistence metrics.
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Topic Weightage
Guinness World Records (General Knowledge Focus)
52.7%
Financial Action Task Force (FATF)
7.1%
International Atomic Energy Agency (IAEA)
5.3%
Weather, Atmosphere and Temperature
3%
Famous Seas
3%
Earth’s Structure and Geological Features
3%
United Nations Human Settlements Programme (UN-Habitat)
2.4%
Highest and Lowest Points
2.4%
Most Repeated GK MCQs from Past Papers
1.8%
Multi-Polar World
1.8%
Group of Seven (G7)
1.8%
Time Zones and Latitude–Longitude
1.8%
World Leaders in News
1.8%
Common Market for Eastern and Southern Africa (COMESA)
1.2%
United Nations High Commissioner for Refugees (UNHCR)
1.2%
Central American Integration System (SICA)
1.2%
Area, Population and Official Languages
1.2%
Ocean Currents and Tides
1.2%
Important Lines and Boundaries
1.2%
United Nations Framework Convention on Climate Change (UNFCCC)
0.6%
World Intellectual Property Organization (WIPO)
0.6%
Commonwealth of Independent States (CIS)
0.6%
International Federation of Red Cross and Red Crescent Societies (IFRC)
0.6%
Natural Resources
0.6%
Past Exam Questions on Foreign Phrases
0.6%
Non-Aligned Movement (NAM)
0.6%
East African Community (EAC)
0.6%
Relations Between Major Powers
0.6%