datavorous/entrance-exam-dataset huggingface dataset:
Vaccination provides

Options:
A Innate passive immunity
B Innate active immunity
C Acquired active immunity
D Acquired passive immunity

The correct answer is:
Acquired active immunity

Solution:
Active Immunity: It is developed when a host is exposed to antigens (living or dead microbes/proteins) and antibodies are produced in the host body. Active immunity is slow and takes time to give its full effective response. It can be developed by injecting the microbes or by the natural entry of infectious organisms into body, for example, vaccination.

Topic: Biology, Human Health and Diseases, NEET
Vaccines are

Options:
A treated bacteria or viruses or one of their proteins.
B major histocompatibility complex.
C curative medicines.
D monoclonal antibodies.

The correct answer is:
treated bacteria or viruses or one of their proteins.

Solution:
Vaccine contains dead, attenuated form or antigen of a pathogen which can be injected to provide immunity towards that pathogen. Monoclonal antibodies are homogenous immunological reagents of defined specificity, so that these can be utilized for diagnosis and screening with certainty.

Topic: Biology, Human Health and Diseases, NEET
Valium is an example of

Options:
A Benzodiazephines
B Barbiturates
C Stimulants
D Hallucinogens

The correct answer is:
Benzodiazephines

Solution:
Valium is the trademark name of diazepam. Diazepam is used to treat anxiety, alcohol withdrawal, and seizures. It is also used to relieve muscle spasms and to provide sedation before medical procedures. This medication works by calming the brain and nerves. Diazepam belongs to a class of drugs known as benzodiazepines.

Topic: Biology, Human Health and Diseases, NEET
Value of adiabatic bulk modulus of elasticity of helium at NTP is

Options:
A 1.01×105 N m-2
B 1.01×10-5 N m-2
C 1.69×105 N m-2
D 1.69×10-5 N m-2

The correct answer is:
1.69×105 N m-2

Solution:
B=γP
For He, γ=53
And pressure at NTP is P=1.01×105 N m-2
∴ B=531.01×105
B=1.69×105 N m-2

Topic: Physics, Mechanical Properties of Solids, NEET
Value of n+ l for 3d is

Options:
A 2
B 4
C 5
D 6

The correct answer is:
5

Solution:
Correct Option is : 3
5

Topic: Chemistry, Structure of Atom, NEET
Value of n+ l for 4p is

Options:
A 2
B 4
C 5
D 6

The correct answer is:
5

Solution:
Correct Option is : 3
5

Topic: Chemistry, Structure of Atom, NEET
Value of n+ l for 4s is

Options:
A 2
B 4
C 5
D 6

The correct answer is:
4

Solution:
Correct Option is : 2
4

Topic: Chemistry, Structure of Atom, NEET
VAM is

Options:
A bioinsecticide
B bioherbicide
C endomycorrhiza
D ectomycorrhiza

The correct answer is:
endomycorrhiza

Solution:
In the case of endomycorrhizal fungal hyphae are found in cells of the cortex. In certain plants, the hyphae penetrate the cortical cells to form vesicles or arbuscles called VAM. Vesicular arbuscular mycorrhiza (VAM).

Topic: Biology, Biological Classification, NEET
VAM is

Options:
A Bioinsecticide
B Bioherbicide
C Endomycorrhiza
D Ectomycorrhiza

The correct answer is:
Endomycorrhiza

Solution:
Endomycorrhizal fungal hyphae are present inside or between the cells of cortex. In many grasses and some other crops, the fungal hyphae penetrate to the cortical cells which swell to form vesicles or arbuscules called vesicular arbuscular mycorrhiza (VAM).

Topic: Biology, Microbes in Human Welfare, NEET
van Arkel method for purification of metals involves converting the metal to a -

Options:
A Volatile stable compound
B Volatile unstable compound
C Nonvolatile stable compound
D None of the above

The correct answer is:
Volatile stable compound

Solution:

Topic: Chemistry, General Principles and Processes of Isolation of Metals, NEET
Vanadium in which oxidation state shows green colour?

Options:
A +1
B +2
C +3
D +4

The correct answer is:
+3

Solution:
Correct Option is : 3
+3

Topic: Chemistry, d and f Block Elements, NEET
Vanishing cream is an example of :

Options:
A Solution
B Foam
C Lyophillic solution
D Emulsion

The correct answer is:
Emulsion

Solution:
Vanishing cream is an oil in water (O in W) type emulsion.

Topic: Chemistry, Solutions, NEET
Van't Hoff factor more than unity indicates that the solute in solution has

Options:
A associated
B dissociated
C both
D cannot say anything

The correct answer is:
dissociated

Solution:
Van't Hoff factor (i)
=  Number of particles present in the solution Number of formula units dissolved in the solution
i>1 indicates the particles in the solution are greater than the formula units dissolved in the solution. This is possible, if the solute undergoes dissociation.

Topic: Chemistry, Solutions, NEET
Vapour pressure of chloroform (CHCl3) and dichloromethane (CH2Cl2) at 298 K are 200 mm Hg and 415 mm Hg respectively.What is the vapour pressure of the solution prepared by mixing 25.5 g of CHCl3and 40 g of CH2Cl2at 298 K?

Options:
A 347.9 mm Hg
B 645.1 mm Hg
C 110.5 mm Hg
D 852.1 mm Hg

The correct answer is:
347.9 mm Hg

Solution:
Correct Option is : (A)
347.9 mm Hg

Topic: Chemistry, Solutions, NEET
Vapour pressure of pure water at 298 K is 23.8 mm Hg. 50 g of urea (NH2CONH2) is dissolved in 850 g of water. Calculate the vapour pressure of water for this solution and its Relative lowering.

Options:
A Vapour pressure is 23.4 mm Hg and Relative lowering is 0.0173
B Vapour pressure is 29.8 mm Hg and Relative lowering is 0.0173
C Vapour pressure is 23.4 mm Hg and Relative lowering is 0.0369
D Vapour pressure is 29.8 mm Hg and Relative lowering is 0.0369

The correct answer is:
Vapour pressure is 23.4 mm Hg and Relative lowering is 0.0173

Solution:
Correct Option is : (A)
Vapour pressure is 23.4 mm Hg and Relative lowering is 0.0173

Topic: Chemistry, Solutions, NEET
Vapour pressure of water at 293 K is 17.535 mm Hg. Calculate the vapour pressure of water at 293 K when 25 g of glucose is dissolved in 450 g of water.

Options:
A 8.38 mm Hg
B 23.46 mm Hg
C 17.44 mm Hg
D 31.52 mm Hg

The correct answer is:
17.44 mm Hg

Solution:
Correct Option is : (C)
17.44 mm Hg

Topic: Chemistry, Solutions, NEET
Vapour pressures of pure acetone and chloroform at 328 K are 741.8 mm Hg and 632.8 mm Hg respectively. Assuming that they form ideal solution over the entire range of composition, plot ptotal, pchloroform, and pacetoneas a function of xacetone. The experimental data observed for different compositions of mixture is:
Indicate whether it has positive deviation or negative deviation from the ideal solution.

Options:
A The solution shows negative deviation from Raoult's law.
B The solution shows positive deviation from Raoult's law.
C The solution shows both positive and negative deviation from Raoult's law.
D The solution strictly follows Raoult's law, showing no deviation

The correct answer is:
The solution shows negative deviation from Raoult's law.

Solution:
Correct Option is : (A)
The solution shows negative deviation from Raoult's law.

Topic: Chemistry, Solutions, NEET
Variable number of tandem repeats (VTNRs) in the DNA molecule are highly useful in:

Options:
A Monoclonal antibody production
B DNA fingerprinting
C Recombinant DNA technology
D Stem cell culture

The correct answer is:
DNA fingerprinting

Solution:
A variable number tandem repeat (or VNTR) is a location in a genome where a short nucleotide sequence is organized as a tandem repeats. These can be found on many chromosomes, and often show variation in length between individuals. Each variant acts as an inheritance allele, allowing them to be used for personal or parental identification. Their analysis is useful in genetics and biology research, forensics, and DNA fingerprinting.

Topic: Biology, Biotechnology and Its Applications, NEET
Variation in gene frequencies within populations can occur by chance rather than by natural selection. This is referred to as

Options:
A genetic flow
B genetic drift
C random mating
D genetic load

The correct answer is:
genetic drift

Solution:
Genetic drift is a random change in allele frequencies over the generations. It is brought by chance alone. Gene flow or gene migration is the physical movement of alleles into and out of a population.
The existence within the population of disadvantages alleles in heterozygous genotypes is known as genetic code.

Topic: Biology, Evolution, NEET, NEET 2013 (All India)
Variation of acceleration due to gravity (g) with distance x from the centre of the Erath is best represented by ( Râ Radius of the Earth)

Options:
A
B
C
D

The correct answer is:

Solution:
The value of g is maximum at the surface of the Earth and g=0 at centre of the Earth. If one goes away from the Earth surface, again the value of g decreases.
Thus, graph (d) is showing the correct variation of g.

Topic: Physics, Gravitation, NEET
Variation of internal energy with density of 1 mol of monatomic gas is depicted in diagram. The corresponding variation of pressure with volume can be depicted as (assume the curve is rectangular hyperbola)

Options:
A
B
C
D

The correct answer is:

Solution:
Since UÏ=constant
PÏ=RTM
P = constant since Ï is increasing, therefore V is decreasing.

Topic: Physics, Thermodynamics, NEET
Variation of resistance of the conductor with temperature is as shown. Temperature coefficient of the conductor is

Options:
A R0m
B mR0
C m2R0
D mR0

The correct answer is:
mR0

Solution:
Rt=R01+αΔt
Where α is temperature coefficient of conductor
=R0+R0αΔT
Slope of graph m=R0α
∴α=mR0

Topic: Physics, Current Electricity, NEET
Variations caused by mutation, as proposed by Hugo de Vries, are:

Options:
A Random and directional
B Random and directionless
C Small and directional
D Small and directionless

The correct answer is:
Random and directionless

Solution:
Hugo de Vries theory:
1. This theory is based on mutations.
2. Mutations cause evolution.
3. Mutations are random and directionless.
4. Sudden mutations cause evolution.

Topic: Biology, Evolution, NEET, NEET 2019 (All India)
Variations during mutations of meiotic recombinations are:

Options:
A random and directionless
B random and directional
C small and directional
D random, small and directional

The correct answer is:
random and directionless

Solution:
Mutations are random and directionless while Darwinian variations are small and directional.

Topic: Biology, Evolution, NEET
Variety of cowpea resistant to bacterial blight is

Options:
A Pusa swarnim
B Pusa Shubhra
C Pusa Sadabahar
D Pusa Komal

The correct answer is:
Pusa Komal

Solution:
Crop	Variety	Resistant to diseases

Brassica	Pusa swarnim
(Karan rai)	White rust

Cauliflower	Pusa Shubhra	Black rot and curl blight black rot

Chilli	Pusa Sadabahar	Chilly mosaic virus, Tobacco mosaic virus and leaf curl

Cowpea	Pusa Komal	Bacterial blight

Topic: Biology, Strategies for Enhancement in Food Production, NEET
Various age pyramids (P-R) for human population are shown below. Select the option with correct identification.

Options:
A

Increasing type	Declining type

P	Q

B

Stable type	Declining type
P	R

C

Stable type	Increasing type

Q	R

D

Stable type	Declining type

Q	R

The correct answer is:

Stable type	Declining type

Q	R

Solution:
TRIANGULAR: It is a graphic representation of a young or growing population which appears like a triangle. The population has a very high proportion of pre-reproductive individuals, proportionate numbers of reproductive individuals is moderate and post reproductive individuals are proportionately fewer. Because of the very large number of pre reproductive individuals, more and more of them enter the reproductive phase and rapidly increases the size of population.

BELL-SHAPED: The pyramid is bell-like with pre-reproductive individuals being only marginally more than the reproductive individuals. Population is said to be mature or stable as there is no increase or decrease in its size due to growth rate being almost zero.

URN-SHAPED: It has small number of pre-reproductive individuals followed by a large number of reproductive individuals. As there are fewer individuals in pre-reproductive group, the population size will decline with time. Such a population shows a declined growth (negative growth)

Topic: Biology, Organisms and Populations, NEET
Various products formed on oxidation of 2,5-dimethylhexan-3-one are
(i)
(ii)
(iii) CH3COOH
(iv) HCOOH

Options:
A (i) and (iii)
B (i), (ii) and (iii)
C (i), (ii), (iii) and (iv)
D (iii) and (iv)

The correct answer is:
(i), (ii), (iii) and (iv)

Solution:

Topic: Chemistry, Aldehydes and Ketones, NEET
Vasa efferentia are the ductules leading from

Options:
A testicular lobules to rete testis
B rete testis to vas deferens
C vas deferens to epididymis
D epididymis to urethra

The correct answer is:
rete testis to vas deferens

Solution:
Rete testis is connected to caput epididymis by 12-20 fine tubules called vasa efferentia or ductuli efferens. These collect sperms from inside the testis and transfer them to the epididymis. Vas deferens arises from caudal epididymis, conducts sperms from epididymis to urethra.

Topic: Biology, Human Reproduction, NEET, NEET 2010 (Screening)
Vasa efferentia are the ductules leading from

Options:
A Testicular lobules to rete testis
B Vas deferens to epididymis
C Epididymis to urethra
D Rete testis to vas deferens

The correct answer is:
Rete testis to vas deferens

Solution:
The seminiferous tubules are closed at one end but on the other side, they join to a network the rete testis from where fine ciliated ductules, the vasa efferentia arise. Cilia help in conducting sperms. The rete testis is a network of tubules conducting sperm from the seminiferous tubules of the testis to the vasa efferentia.

Topic: Biology, Human Reproduction, NEET
Vasa recta is associated with

Options:
A Most of cortical nephrons
B Few of cortical nephrons only
C Juxta medullary nephrons
D Urinary bladder

The correct answer is:
Juxta medullary nephrons

Solution:
Cortical nephrons	Juxta medullary nephrons

The loop of Henle is too short and extends very little into the medulla.	The loop of Henle is very long and runs deep into the medulla.

Vasa recta are absent or highly reduced.	Vasa recta are well developed.

Example: The majority of nephrons.	Example: Some of the nephrons.

Topic: Biology, Excretory Products and their Elimination, NEET
Vascular bundle is enclosed within a well developed sclerenchymatous sheath in ________.

Options:
A monocot stem
B dicot stem
C monocot root
D dicot root

The correct answer is:
monocot stem

Solution:
There are four tissue systems present in the monocot stem i.e.dermal tissues system, hypodermal tissue system, ground tissue system, and vascular tissue system. The organization of elements of Xylem and phloem in a group is called the vascular bundle. It is found scattered in monocot stems. Its vascular bundle is covered by sclerenchymatous fiber from outside so the fibrovascular bundle is found in monocot stem whereas the sclerenchymatous sheath is not present in the roots.

Topic: Biology, Anatomy of Flowering Plants, NEET
Vascular bundles in monocotyledons are considered closed because:

Options:
A A bundle sheath surrounds each bundle.
B Cambium is absent.
C There are no vessels with perforations.
D Xylem is surrounded all around by phloem.

The correct answer is:
Cambium is absent.

Solution:
The vascular bundles of monocotyledonous plants do not contain a layer of meristematic tissue (cambium) as the dicots do. Thus, no new cells can be formed inside the vascular bundles of monocots and their vascular bundles are termed closed whereas those of dicot plants are open.

Topic: Biology, Anatomy of Flowering Plants, NEET, NEET 2015 (Phase 1)
Vascular bundles where the phloem is found to be present on both sides of xylem is said to be:

Options:
A Radial
B Conjoint
C Collateral
D Bicollateral

The correct answer is:
Bicollateral

Solution:
The vascular bundle is a long continuous strand of conducting tissues that extend from the roots through the stem and into the leaves. It consists of xylem and phloem that may differ in their arrangement. Bicollateral bundles are those type of vascular bundles in which phloem patches are present on both sides of xylem. These are found in families like Cucurbitaceae, etc.

Topic: Biology, Anatomy of Flowering Plants, NEET
Vasectomy prevents

Options:
A movement of sperm from urethra to testes
B movement of sperm from epididymis to vas deferens
C movement of sperm from vas deferens to urethra
D movement of sperm from testes to urethra.

The correct answer is:
movement of sperm from testes to urethra.

Solution:
Contraceptive methods avoid pregnancy. These can be Natural methods, Barrier methods, IUD's, Chemical methods, Surgical methods and Implants. Surgical methods include vasectomy in males and tubectomy in females. Vasectomy means a small part of vasa deferens is cut and ligated. This prevents movement of sperm from testes to urethra. Thus when such a male will ejaculate the semen will be without sperms and thus during coitus there will be no chance of sperm entering the female tract.

Topic: Biology, Reproductive Health, NEET
Vector for dengue and chikungunya is

Options:
A Female Anopheles mosquito
B Male Anopheles mosquito
C Culex mosquito
D Aedes mosquito

The correct answer is:
Aedes mosquito

Solution:
Aedes ageypti is a vector for transmission of diseases like dengue and chikungunya.

Topic: Biology, Human Health and Diseases, NEET
Vectors $\vec{A}, \vec{B}$, and $\vec{C}$ are such $\vec{A} \cdot \vec{B}=0$ $\vec{A} \cdot \vec{C}=0$. Then the vector parallel is $\vec{A}$ is:

Options:
A $\vec{A} \times \vec{B}$
B $\vec{B} \times \vec{C}$
C $\vec{B} \times \vec{C}$
D $\vec{B}$ and $\vec{C}$

The correct answer is:
$\vec{B} \times \vec{C}$

Solution:
From vector produce
$$
\vec{A} \times(\vec{B} \times \vec{C})=(\vec{B} \cdot \vec{C}) \vec{B}-(\vec{A} \cdot \vec{B}) \vec{C}
$$
Given that $\vec{A} \cdot \vec{B}=0, \vec{A} \cdot \vec{C}=\mathrm{C}$ then $\vec{A} \times(\vec{B} \times \vec{C})=0$ thus vector $A$ is paralles to $\vec{B} \times \vec{C}$

Topic: Physics, Mathematics in Physics, NEET, NEET 2013 (Karnataka)
Vegetative propagation in mint occurs by

Options:
A runner
B offset
C rhizome
D sucker

The correct answer is:
sucker

Solution:
The vegetative propagation in mint (Mentha arvensis) occurs by sucker. Sucker is a non-green underground specialized stem developing from the underground base of an erect shoot or crown.

Topic: Biology, Reproduction in Organisms, NEET, NEET 2009 (Screening)
Vegetative propagule in Agave is:

Options:
A Rhizome
B Bulbil
C Offset
D Eye

The correct answer is:
Bulbil

Solution:
Bulbils are formed in the axillary position in Dioscorea, and Agave.

Rhizome is seen in ginger.

Offset is seen in aquatic plants like water hyacinth.

Tubers or eye of potato helps in vegetative propagation in potato.

Topic: Biology, Reproduction in Organisms, NEET, NEET 2020 (Phase 2)
Velocity v versus displacement x plot of a body moving along a straight line is as shown in the graph. The corresponding plot of acceleration a as a function of displacement x is

Options:
A
B
C
D

The correct answer is:

Solution:
The given graph
v=Kx .....(i)
dvdt=K . v (from the equation (i))
dvdt=K.Kx=K2x
a=K2x
and v= -Kx+v0
dvdt= -K.v= -K-Kx+v0
a=K2x-Kv0 .......(ii)
So, according to the equation (ii).

Topic: Physics, Motion In One Dimension, NEET
Venation is a term used to describe the pattern of arrangement of

Options:
A Floral organs
B Flowers in inflorescence
C Veins and veinlets in a lamina
D All of them

The correct answer is:
Veins and veinlets in a lamina

Solution:
Venation is a term used to describe the pattern of arrangement of veins and veinlets in a lamina.

Topic: Biology, Morphology of Flowering Plants, NEET
Venation is a term used to describe the pattern of arrangement of:

Options:
A Petals
B Flower
C Veins and veinlets in lamina
D Sepals in flower

The correct answer is:
Veins and veinlets in lamina

Solution:
Arrangements of veins and veinlets on leaf lamina is called as venation. When veins forms a network, the venation is called as reticulate, as in dicots. When veins lie parallel to each other than the venation is called parallel as in monocots. Veins provide rigidity to the leaf lamina and acts as channels of transport for water and minerals.

Topic: Biology, Morphology of Flowering Plants, NEET
Venation relates to

Options:
A floral organs.
B flower in inflorescence.
C veins and veinlets in a lamina.
D All of them

The correct answer is:
veins and veinlets in a lamina.

Solution:
For describing the arrangement of the veins in the leaf, we use the term venation. Some venations are reticulate which is scattered and some are parallel where the vein lines run parallel to each other.

Topic: Biology, Morphology of Flowering Plants, NEET
Veneral diseases can spread through:

(a) Using sterile needles

(b) Transfusion of blood from infected person

(c) Infected mother to foetus

(d) Kissing

(e) Inheritance

Options:
A (a), (b) and (c) only
B

(b), (c) and (d) only

C (b) and (c) only
D (a) and (c) only

The correct answer is:
(b) and (c) only

Solution:
Venereal diseases are known as sexually transmitted diseases (STDs) or sexually transmitted infections (STIs) are generally acquired by sexual contact. The causative organisms like bacteria, viruses, or protozoans pass from one person to another person through blood, semen, vaginal route, or from mother to child. Using sterile needles and normally kissing does not aid in transferring these causative organisms.

Topic: Biology, Reproductive Health, NEET, NEET 2021
Verify that the cyclotron frequency :

Options:
A ω = eB/m has dimensions of [M][L]–2[T]–1
B ω = eB/m has dimensions of [T]–2
C ω = eB/m has dimensions of [T][M][L]–1
D ω = eB/m has dimensions of [T]–1

The correct answer is:
ω = eB/m has dimensions of [T]–1

Solution:
Correct Option is : (D)
ω = eB/m has dimensions of [T]–1

Topic: Chemistry, Magnetic Effects of Current, NEET
Vernalisation is commonly seen in plants like __________, which are __________ in nature.

Options:
A sugarbeet, annual
B cabbage, perrenial
C mustard, biennial
D carrot, biennial

The correct answer is:
carrot, biennial

Solution:
Another example of vernalisation is seen in biennial plants. Biennials are monocarpic plants that normally flower and die in the second season. Sugarbeet, cabbages, carrots are some of the common biennials. Subjecting the growing of a biennial plant to a cold treatment stimulates a subsequent photoperiodic flowering response.

Topic: Biology, Plant - Growth and Development, NEET
Vernalization is best defined as

Options:
A All changes that an organism goes through during its life cycle.
B Flowering is either quantitatively or qualitative dependent on exposure to low temperature.
C Flowering induced by altering nutrient supply
D Presence of different kinds of structure in response to environment or phases of life.

The correct answer is:
Flowering is either quantitatively or qualitative dependent on exposure to low temperature.

Solution:
Vernalization is the induction of a plant's flowering process by exposure to the prolonged cold of winter, or by an artificial equivalent. After vernalization, plants have acquired the ability to flower, but they may require additional seasonal cues or weeks of growth before they will actually flower.

Topic: Biology, Plant - Growth and Development, NEET
Vernalization is defined as

Options:
A all changes that an organism goes through during its life cycle.
B flowering that is either quantitatively or qualitatively dependent on the exposure to low temperature.
C flowering induced only when a plant is exposed to certain duration of photoperiod.
D presence of different kinds of structure in response to environment or phases of life.

The correct answer is:
flowering that is either quantitatively or qualitatively dependent on the exposure to low temperature.

Solution:
Vernalization is the induction of a plant's flowering process by exposure to the prolonged cold in winter or by an artificial equipment. After vernalization, plants acquire the ability to flower, but they may require additional seasonal cues or weeks of growth before they actually flower.

Topic: Biology, Plant - Growth and Development, NEET