datavorous/entrance-exam-dataset huggingface dataset:
What is the direction of the force on the wall due to each ball when two identical billiard balls strike a rigid wall with the same speed but at different angles, and get reflected without any change in speed, as shown in Fig.?

Options:
A Perpendicular to the wall
B Parallel to the wall
C Opposite to the direction of motion of each ball
D Zero force on the wall

The correct answer is:
Perpendicular to the wall

Solution:
Correct Option is : (A)
Perpendicular to the wall

Topic: Chemistry, Laws of Motion, NEET
What is the disease caused by underproduction of hormones by the adrenal cortex?

Options:
A Addison's disease
B Adrenaline's disease
C Hypothyroidism
D Hyperthyroidism

The correct answer is:
Addison's disease

Solution:
Underproduction of hormones by the adrenal cortex alters carbohydrate metabolism causing acute weakness and fatigue leading to a disease called Addison’s disease.

Topic: Biology, Chemical Coordination and Integration, NEET
What is the disintegration constant of a radioactive element, if the number of its atoms diminishes by 18% in 24 h? Where ln5041=0.198

Options:
A 2.1×10−3 s−1
B 2.1×105 s−1
C 22×106 s−1
D 22×10−6 s−1

The correct answer is:
22×10−6 s−1

Solution:
The percentage of element of left behind after time t,
NN0=(100-18)%=82%
∵NN0=e-λt
⇒82100=e-λ(24×60×60)
⇒λ×24×60×60=ln10082
⇒λ=0.19824×60×60=22×10-6 s-1

Topic: Physics, Nuclear Physics, NEET
What is the dispersed phase composed of in a colloid?

Options:
A Simple molecules
B Ions
C Macromolecules or aggregates
D Gases

The correct answer is:
Macromolecules or aggregates

Solution:
The dispersed phase in a colloid may consist of particles of a single macromolecule or an aggregate of many atoms, ions, or molecules.

Topic: Chemistry, Surface Chemistry, NEET
What is the dispersion medium in Bredig’s Arc method?

Options:
A Air
B Water
C Oil
D Metal

The correct answer is:
Water

Solution:
In Bredig’s Arc method, the dispersion medium is water.

Topic: Chemistry, Surface Chemistry, NEET
What is the displacement of a simple harmonic oscillator at which its potential energy is half of the maximum energy of the oscillator?

Options:
A A/$\sqrt{2}$
B A/2
C A
D $\sqrt{2}$A

The correct answer is:
A/$\sqrt{2}$

Solution:
Correct Option is : (A)
A/$\sqrt{2}$

Topic: Chemistry, Oscillations, NEET
What is the displacement of the motorist after the third, sixth, and eighth left turns, each occurring at an angle of 60 degrees after every 500 meters on an open ground? Additionally, compare the magnitude of the displacement with the total path length covered by the motorist in each case.

Options:
A The displacement after the third, sixth, and eighth turns is greater than the total path length covered.
B The displacement after the third, sixth, and eighth turns is equal to the total path length covered.
C The displacement after the third, sixth, and eighth turns is less than the total path length covered.
D The displacement after the third, sixth, and eighth turns cannot be determined without additional information.

The correct answer is:
The displacement after the third, sixth, and eighth turns is less than the total path length covered.

Solution:
Correct Option is : (C)
The displacement after the third, sixth, and eighth turns is less than the total path length covered.

Topic: Chemistry, Motion In Two Dimensions, NEET
What is the displacement of the upper edge of a square lead slab with a side length of 50 cm and thickness of 10 cm when subjected to a shearing force of 9.0 × 10^4 N on its narrow face, with the lower edge riveted to the floor?

Options:
A 0.002 cm
B 0.16 mm
C 0.16 cm
D 1.0 mm

The correct answer is:
0.16 mm

Solution:
Correct Option is : (B)
0.16 mm

Topic: Chemistry, Mechanical Properties of Solids, NEET
What is the distal convoluted tubule (DCT)?

Options:
A A common collecting duct
B A portion of the renal tubule
C A glomerulus
D Henle's loop

The correct answer is:
A portion of the renal tubule

Solution:
The distal convoluted tubule (DCT) is a portion of the renal tubule.

Topic: Biology, Excretory Products and their Elimination, NEET
What is the distance between the two strands of the helix in the Double-helix structure of DNA?

Options:
A Approximately 0.34 nm
B Approximately 1.0 nm
C Approximately 3.4 nm
D Approximately 10 nm

The correct answer is:
Approximately 0.34 nm

Solution:
The approximate distance between the two strands of the helix in the Double-helix structure of DNA is 0.34 nm.

Topic: Biology, Molecular Basis of Inheritance, NEET
What is the distance between two consecutive base pairs in a DNA double helix?

Options:
A Approximately 2.2 metres
B Approximately 0.34 nm
C Approximately 1.36 mm
D Approximately 6.6 × 10⁹ bp

The correct answer is:
Approximately 0.34 nm

Solution:
The distance between two consecutive base pairs in a DNA double helix is approximately 0.34 nm.

Topic: Biology, Molecular Basis of Inheritance, NEET
What is the distance between two layers of graphite?

Options:
A 141.5 pm
B 340 pm
C 199.9 pm
D 500 pm

The correct answer is:
340 pm

Solution:
The distance between two layers of graphite is 340 pm.

Topic: Chemistry, p Block Elements (Group 13 & 14), NEET
What is the distance between two small spheres, one with a charge of 0.4 mC and the other with a charge of –0.8 mC in air, if the electrostatic force between them is 0.2 N?

Options:
A 0.12 meters
B 0.14 meters
C 0.16 meters
D 0.18 meters

The correct answer is:
0.12 meters

Solution:
Correct Option is : (A)
0.12 meters

Topic: Chemistry, Electrostatics, NEET
What is the distance d of the center of gravity of the 2 m long non-uniform bar (weight W) from its left end when it is suspended at rest by two strings with angles of 36.9° and 53.1° with the vertical?

Options:
A 1.2 m
B 1.4 m
C 0.7 m
D 1.8 m

The correct answer is:
0.7 m

Solution:
Correct Option is : (C)
0.7 m

Topic: Chemistry, Rotational Motion, NEET
What is the distance from the concave mirror where a screen should be placed to obtain a sharp image of a small candle, 2.5 cm in size, when the candle is placed at 27 cm in front of the mirror with a radius of curvature of 36 cm?

Options:
A 54 cm
B 27 cm
C 36 cm
D 72 cm

The correct answer is:
54 cm

Solution:
Correct Option is : (A)
54 cm

Topic: Chemistry, Ray Optics, NEET
What is the distance of closest approach to the nucleus of a 7.7 MeV alpha particle before it comes momentarily to rest and reverses its direction?

Options:
A 20 fm
B 30 fm
C 40 fm
D 50 fm

The correct answer is:
30 fm

Solution:
Correct Option is : (B)
30 fm

Topic: Chemistry, Atomic Physics, NEET
What is the distance of the third bright fringe on the screen from the central maximum for a beam of light consisting of two wavelengths, 650 nm and 520 nm, used to obtain interference fringes in a Young's double-slit experiment?

Options:
A 1.17 mm
B 2.34 mm
C 0.58 mm
D 3.51 mm

The correct answer is:
1.17 mm

Solution:
Correct Option is : (A)
1.17 mm

Topic: Chemistry, Wave Optics, NEET
What is the distinction between the magnitude of displacement (sometimes called distance) over an interval of time and the total length of the path covered by a particle over the same interval?

Options:
A Magnitude of displacement represents the total length of the path, while the total length of the path represents the shortest distance between two points.
B Magnitude of displacement is a scalar quantity, while the total length of the path is a vector quantity.
C Magnitude of displacement considers only the initial and final positions, while the total length of the path accounts for all positions during the motion.
D Magnitude of displacement is always greater than the total length of the path.

The correct answer is:
Magnitude of displacement considers only the initial and final positions, while the total length of the path accounts for all positions during the motion.

Solution:
Correct Option is : (C)
Magnitude of displacement considers only the initial and final positions, while the total length of the path accounts for all positions during the motion.

Topic: Chemistry, Motion In One Dimension, NEET
What is the distinguishing factor between a polypeptide and a protein?

Options:
A Molecular mass
B Number of amino acids
C Presence of water molecules
D Presence of hydrogen bonds

The correct answer is:
Molecular mass

Solution:
The distinction between a polypeptide and a protein is based on molecular mass, with proteins having a higher molecular mass.

Topic: Chemistry, Biomolecules, NEET
What is the distinguishing feature of a trans isomer in a square planar complex?

Options:
A Ligands are arranged adjacent to each other.
B Ligands are arranged opposite to each other.
C Ligands form a square-shaped arrangement.
D Ligands are bonded through multiple donor atoms.

The correct answer is:
Ligands are arranged opposite to each other.

Solution:
In a trans isomer of a square planar complex, ligands are arranged opposite to each other.

Topic: Chemistry, Coordination Compounds, NEET
What is the distinguishing feature of non-narcotic (non-addictive) analgesics?

Options:
A They cause impairment of consciousness
B They induce sleep
C They are addictive
D They do not cause addiction

The correct answer is:
They do not cause addiction

Solution:
Non-narcotic (non-addictive) analgesics are distinguished by the fact that they do not cause addiction.

Topic: Chemistry, Chemistry in Everyday Life, NEET
What is the diversity in the biological world related to?

Options:
A The cycle of birth, growth and death.
B The organism's habitat.
C The mechanism to multiply and produce offspring.
D Internal physiology.

The correct answer is:
The mechanism to multiply and produce offspring.

Solution:
There is a large diversity in the biological world and each organism has evolved its own mechanism to multiply and produce offspring.

Topic: Biology, Reproduction in Organisms, NEET
What is the division in mitosis called which is followed by the division of the cytoplasm?

Options:
A Nuclear division
B Cytoplasmic division
C Cytokinesis
D Telophase

The correct answer is:
Cytokinesis

Solution:
Nuclear division is then followed by the cytoplasmic division and is called cytokinesis.

Topic: Biology, Cell Cycle and Cell Division, NEET
What is the dominant flower color in a typical test cross between a violet and a white flower?

Options:
A Violet
B White
C Both violet and white
D Cannot be determined

The correct answer is:
Violet

Solution:
In a typical test cross, an organism showing a dominant phenotype (violet) is crossed with a recessive parent (white) to determine the genotype of the test organism.

Topic: Biology, Principles of Inheritance and Variation, NEET
What is the dominant intermolecular force or bond that must be overcome in converting liquid $\mathrm{CH}_3 \mathrm{OH}$ to a gas ?

Options:
A Hydrogen bonding
B Dipole-dipole interaction
C Covalent bonds
D London dispersion force

The correct answer is:
Hydrogen bonding

Solution:
Key Idea When $\mathrm{H}$ atom is directly linked with $\mathrm{N}$ or $\mathrm{O}$, or $\mathrm{F}$, inter or interamolecular $\mathrm{H}$-bonding is formed.
In between $\mathrm{CH}_3 \mathrm{OH}$ molecules intermolecular H-bonding exist.
Hence, it is the intermolecular H-bonding that must be overcome in converting liquid $\mathrm{CH}_3 \mathrm{OH}$ to gas.

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET, NEET 2009 (Screening)
What is the dominant phase of pteridophytes?

Options:
A Gametophyte
B Sporophyte
C Zygote
D Antherozoid

The correct answer is:
Sporophyte

Solution:
The dominant phase of pteridophytes is the sporophyte, which is produced by the zygote after fertilization.

Topic: Biology, Plant Kingdom, NEET
What is the dominant species at elevated temperatures (~1000 K)?

Options:
A S8
B O2
C S2
D O3

The correct answer is:
S2

Solution:
The passage mentions that at elevated temperatures (~1000 K), S2 is the dominant species.

Topic: Chemistry, p Block Elements (Group 15, 16, 17 & 18), NEET
What is the dominant term that determines the ionization enthalpy required to form M2+ ions from gaseous atoms?

Options:
A First ionization enthalpy
B Second ionization enthalpy
C Third ionization enthalpy
D Enthalpy of atomization

The correct answer is:
Second ionization enthalpy

Solution:
The paragraph states that the dominant term is the second ionization enthalpy required to form M2+ ions.

Topic: Chemistry, d and f Block Elements, NEET
What is the driving force behind the direction favored by an acid (or base) dissociation equilibrium?

Options:
A The concentration of the acids involved
B The concentration of the bases involved
C The strength of the proton donor
D The strength of the proton acceptor

The correct answer is:
The strength of the proton donor

Solution:
The driving force behind the direction favored by an acid (or base) dissociation equilibrium is the strength of the proton donor.

Topic: Chemistry, Ionic Equilibrium, NEET
What is the driving force for the rapid dehydration of the intermediate in this reaction?

Options:
A High temperature
B High pressure
C Presence of excess ammonia
D Formation of a stable product

The correct answer is:
Formation of a stable product

Solution:
The rapid dehydration of the intermediate occurs because it leads to the formation of a stable product, >C=N-Z.

Topic: Chemistry, Aldehydes, Ketones and Carboxylic Acids, NEET
What is the driving force of spontaneously occurring changes in chemical or physical processes?

Options:
A Heat flow from colder body to warmer body.
B The unidirectional flow of heat.
C The potential to proceed without the assistance of an external agency.
D The rate of the reaction or process.

The correct answer is:
The potential to proceed without the assistance of an external agency.

Solution:
Spontaneous changes in chemical or physical processes have the potential to proceed without the assistance of an external agency. This means that they can occur on their own without needing external intervention.

Topic: Chemistry, Thermodynamics (C), NEET
What is the dual character of electromagnetic radiation?

Options:
A It possesses both wave-like and particle-like properties.
B It is solely composed of waves.
C It is solely composed of particles.
D It has no distinct properties.

The correct answer is:
It possesses both wave-like and particle-like properties.

Solution:
The dual character of electromagnetic radiation means that it possesses both wave-like and particle-like properties

Topic: Chemistry, Structure of Atom, NEET
What is the duration of a cardiac cycle?

Options:
A 1.0 second
B 0.8 second
C 0.5 second
D 1.5 second

The correct answer is:
0.8 second

Solution:
The duration of a cardiac cycle is 0.8 seconds.

Topic: Biology, Body Fluids and Circulation, NEET
What is the duration of a cardiac cycle?

Options:
A 70 mL
B 5000 mL
C 72 times
D 0.8 seconds

The correct answer is:
0.8 seconds

Solution:
From the fact that the heart beats 72 times per minute, it could be deduced that the duration of a cardiac cycle is 0.8 seconds.

Topic: Biology, Body Fluids and Circulation, NEET
What is the duration of taking the pills?

Options:
A 7 days
B 21 days
C 72 hours
D 6 months

The correct answer is:
21 days

Solution:
The pills have to be taken daily for a period of 21 days and then repeated in the same pattern till the female desires to prevent conception.

Topic: Biology, Reproductive Health, NEET
What is the duration of the reproductive phase in different organisms?

Options:
A Same in all organisms
B Different in different organisms
C Cannot be determined
D None of the above

The correct answer is:
Different in different organisms

Solution:
The reproductive phase is of variable duration in different organisms.

Topic: Biology, Reproduction in Organisms, NEET
What is the ecological importance of mosses and lichens?

Options:
A They decompose rocks
B They reduce the impact of falling rain
C They prevent soil erosion
D They are used as food for herbivores

The correct answer is:
They decompose rocks

Solution:
Mosses along with lichens are the first organisms to colonize rocks and hence, are of great ecological importance. They decompose rocks making the substrate suitable for the growth of higher plants.

Topic: Biology, Plant Kingdom, NEET
What is the ecological principle behind the control method of managing pest insects?

Options:
A Mutualism
B Commensalism
C Predation
D None of the above

The correct answer is:
Predation

Solution:
The ecological principle behind the control method of managing pest insects is predation.

Topic: Biology, Organisms and Populations, NEET
What is the economic value of the progeny obtained from interspecific hybridisation?

Options:
A It may have desirable features of both parents
B It may be of low economic value
C It may be of high economic value
D It may not have any economic value

The correct answer is:
It may have desirable features of both parents

Solution:
The progeny obtained from interspecific hybridisation may have desirable features of both parents and may be of considerable economic value.

Topic: Biology, Strategies for Enhancement in Food Production, NEET
What is the edge length of a unit cell in a cubic close-packed (ccp) structure in terms of the sphere radius (r)?

Options:
A a = 2r
B a = 3r
C a = 4r
D a = 5r

The correct answer is:
a = 2r

Solution:
The edge length (a) of a unit cell in a cubic close-packed (ccp) structure is equal to 2 times the radius of the spheres (a = 2r).

Topic: Chemistry, Solid State, NEET
What is the edge length of a unit cell in a face-centered cubic (fcc) structure in terms of the sphere radius (r)?

Options:
A a = r
B a = 2r
C a = √2r
D a = 4r

The correct answer is:
a = √2r

Solution:
The edge length (a) of a unit cell in a face-centered cubic (fcc) structure is equal to the square root of 2 times the radius of the spheres (a = √2r).

Topic: Chemistry, Solid State, NEET
What is the edge length of the unit cell of NaCl crystal, when it is given that the distance between Na+ and Cl- ions in NaCl crystal is 265 pm?

Options:
A 265 pm
B 530 pm
C 795 pm
D 132.5 pm

The correct answer is:
530 pm

Solution:
For rock salt type structure,
a 2 â=â r + â+â r â
aâ=â2 r + â+â r â
aâ = 2 Ã distance between Na + âandâ Cl â
a = 2 × 265 = 530 pm

Topic: Chemistry, Solid State, NEET
What is the effect called when the change in allele frequency is so different in the new sample of population that they become a different species?

Options:
A Founder effect
B Genetic drift
C Gene flow
D Natural selection

The correct answer is:
Founder effect

Solution:
The change in allele frequency is so different in the new sample of population that they become a different species, this effect is called founder effect.

Topic: Biology, Evolution, NEET
What is the effect of 2, 4-D on mature monocotyledonous plants?

Options:
A Affects it
B Does not affect it
C Induces parthenocarpy
D Has no effect

The correct answer is:
Does not affect it

Solution:
2, 4-D, widely used to kill dicotyledonous weeds, does not affect mature monocotyledonous plants.

Topic: Biology, Plant - Growth and Development, NEET
What is the effect of a failure in cell division after DNA replication?

Options:
A random replication
B polyploidy
C continuous replication
D none of the above

The correct answer is:
polyploidy

Solution:
A failure in cell division after DNA replication results in polyploidy, a chromosomal anomaly.

Topic: Biology, Molecular Basis of Inheritance, NEET
What is the effect of a frameshift mutation?

Options:
A It changes one or multiple amino acids
B It results in the change of amino acid residue
C It alters the reading frame from the point of mutation
D It has no effect on the gene or its function

The correct answer is:
It alters the reading frame from the point of mutation

Solution:
Frameshift mutations, which result from the insertion or deletion of one or two bases, alter the reading frame from the point of mutation.

Topic: Biology, Molecular Basis of Inheritance, NEET
What is the effect of adding BHA to butter?

Options:
A It reduces the shelf life of butter
B It has no impact on the shelf life of butter
C It increases the shelf life of butter from months to years
D It improves the taste of butter

The correct answer is:
It increases the shelf life of butter from months to years

Solution:
The addition of BHA to butter increases its shelf life from months to years.

Topic: Chemistry, Chemistry in Everyday Life, NEET
What is the effect of adding more electrolytes to a sol on the diffused double layer and zeta potential?

Options:
A Increases diffused double layer, increases zeta potential
B Decreases diffused double layer, decreases zeta potential
C Increases diffused double layer, decreases zeta potential
D Decreases diffused double layer, increases zeta potential

The correct answer is:
Decreases diffused double layer, decreases zeta potential

Solution:
The paragraph mentions that the addition of more electrolytes to a sol suppresses the diffused double layer and reduces the zeta potential.

Topic: Chemistry, Surface Chemistry, NEET
What is the effect of ADH on blood vessels?

Options:
A Dilates
B Constricts
C No effect
D Inhibits

The correct answer is:
Constricts

Solution:
ADH can affect the kidney function by its constrictory effects on blood vessels, causing an increase in blood pressure.

Topic: Biology, Excretory Products and their Elimination, NEET
What is the effect of adrenaline and noradrenaline on glucose concentration in the blood?

Options:
A Decreases
B No effect
C Increases
D No effect on glucose concentration in blood but increases the breakdown of glycogen

The correct answer is:
Increases

Solution:
Catecholamines also stimulate the breakdown of glycogen resulting in an increased concentration of glucose in blood.

Topic: Biology, Chemical Coordination and Integration, NEET
What is the effect of adrenaline and noradrenaline on heart beat, strength of heart contraction, and rate of respiration?

Options:
A Decreases
B No effect
C Increases
D No effect on heart beat but increases strength of heart contraction and rate of respiration

The correct answer is:
Increases

Solution:
Both the hormones increase the heart beat, the strength of heart contraction and the rate of respiration.

Topic: Biology, Chemical Coordination and Integration, NEET
What is the effect of adrenaline and noradrenaline on lipids and proteins?

Options:
A Increases the breakdown
B Decreases the breakdown
C No effect
D Increases the breakdown of proteins but decreases the breakdown of lipids

The correct answer is:
Increases the breakdown

Solution:
Catecholamines also stimulate the breakdown of lipids and proteins.

Topic: Biology, Chemical Coordination and Integration, NEET
What is the effect of an enzyme in an enzyme-catalysed reaction?

Options:
A decreases the activation energy and decreases the energy yield
B decreases the activation energy and has no effect on the energy yield
C increases the activation energy and increases the energy yield
D increases the energy yield and decreases the activation energy

The correct answer is:
decreases the activation energy and has no effect on the energy yield

Solution:
An enzyme is a catalyst that reduces the activation energy for a reaction and helps in increasing the concentration of product without any change in energy yield.

Topic: Chemistry, Biomolecules, NEET
What is the effect of an impairment affecting synthesis or release of ADH?

Options:
A Stimulation of growth hormone secretion
B Stimulation of steroid hormone secretion
C Stimulation of resorption of water and electrolytes
D Decreased ability to conserve water

The correct answer is:
Decreased ability to conserve water

Solution:
An impairment affecting synthesis or release of ADH results in a diminished ability of the kidney to conserve water leading to water loss and dehydration. This condition is known as Diabetes Insipidus.

Topic: Biology, Chemical Coordination and Integration, NEET