datavorous/entrance-exam-dataset huggingface dataset:
Which of the following statements is true according to the concept of biological classification?

Options:
A Bacteria are heterotrophic saprophytic organisms in the kingdom Monera with a great range of diversity.
B The heterotrophic prokaryotic, multicellular organisms lacking a cell wall are included in kingdom Animalia.
C Kingdom Fungi includes eukaryotic, multicellular heterotrophic organisms which exhibit both sexual as well as asexual modes of reproduction and have a great range of diversity.
D Kingdom Plantae includes eukaryotic chlorophyll containing unicellular organisms and a few heterotrophs.

The correct answer is:
Kingdom Fungi includes eukaryotic, multicellular heterotrophic organisms which exhibit both sexual as well as asexual modes of reproduction and have a great range of diversity.

Solution:
Bacteria may be autotrophic or heterotrophic organisms with a wide range of diversity present in the kingdom Monera. Members of kingdom Fungi are heterotrophic, eukaryotic, multicellular organism with cell wall made of chitin and exhibit both sexual as well as asexual modes of reproduction. Organisms present in kingdom Animalia are eukaryotic, multicellular, and heterotrophic with no cell wall. Kingdom Plantae consists of eukaryotic chlorophyll containing organisms with few heterotrophs.

Topic: Biology, Biological Classification, NEET
Which of the following statements is true for a secretory cell?

Options:
A Golgi apparatus is absent.
B Rough Endoplasmic reticulum (RER) is easily observed in the cell.
C Only Smooth endoplasmic reticulum (SER) is present.
D Secretory granules are formed in nucleus.

The correct answer is:
Rough Endoplasmic reticulum (RER) is easily observed in the cell.

Solution:
RER is frequently observed in the cells actively involved in protein synthesis and secretion. RER is well developed in cells engaged in synthesis of secretory products.

Topic: Biology, Cell - The Unit of Life, NEET
Which of the following statements is true for collisions?

Options:
A momentum is conserved in elastic collisions but not in inelastic collisions.
B total kinetic energy is conserved in elastic collisions but momentum is not conserved.
C total kinetic energy is not conserved in inelastic collisions but momentum is conserved
D total kinetic energy and momentum both are conserved in all types of collisions

The correct answer is:
total kinetic energy is not conserved in inelastic collisions but momentum is conserved

Solution:
Momentum is conserved in all types of collisions but in inelastic collision there is loss in kinetic energy.

Topic: Physics, Center of Mass Momentum and Collision, NEET
Which of the following statements is true is case of alkyl halides?

Options:
A They are polar in nature
B They can form hydrogen bonds
C They are highly soluble in water
D They undergo addition reactions

The correct answer is:
They are polar in nature

Solution:
Alkyl halides are insoluble in water but soluble in organic solvent, polar in nature and undergo substitution or elimination reaction.

Topic: Chemistry, Haloalkanes and Haloarenes, NEET
Which of the following statements is true regarding a fluid flowing out of a small hole in a vessel?

Options:
A It results in a forward thrust on the vessel.
B It results in no thrust on the vessel.
C It results in a backward thrust on the vessel.
D It results in a lateral thrust on the vessel.

The correct answer is:
It results in a backward thrust on the vessel.

Solution:
Correct Option is : (C)
It results in a backward thrust on the vessel.

Topic: Chemistry, Mechanical Properties of Fluids, NEET
Which of the following statements is true regarding measuring the potential barrier across a p-n junction using a voltmeter?

Options:
A Yes, as the voltmeter automatically adjusts to the junction's resistance.
B No, because the voltmeter must have a resistance very high compared to the junction resistance, the latter being nearly infinite.
C Yes, as the potential barrier can be directly read from the voltmeter's display.
D No, because the potential barrier is not a measurable quantity using a voltmeter.

The correct answer is:
No, because the voltmeter must have a resistance very high compared to the junction resistance, the latter being nearly infinite.

Solution:
Correct Option is : (B)
No, because the voltmeter must have a resistance very high compared to the junction resistance, the latter being nearly infinite.

Topic: Chemistry, Semiconductors, NEET
Which of the following statements is true regarding sexual reproduction?

Options:
A Off springs are not identical to the parents but identical among themselves.
B Off springs are identical to the parents but not identical among themselves
C Off springs are identical to the parents and identical among themselves
D Off springs are not identical to the parents or among themselves

The correct answer is:
Off springs are not identical to the parents or among themselves

Solution:
Organism exhibiting sexual reproduction exhibits male and female gamete formation either in a single individual or in two different individuals of the opposite sex. Fertilization is the process of fusion of male and female gamete that results in the formation of a zygote. Since sexual reproduction takes place by fusion of male and female gamete, the resulting offsprings produced are non identical to the parents as well as amongst themselves.

Topic: Biology, Reproduction in Organisms, NEET
Which of the following statements is true regarding the addition of water to alkenes with concentrated sulfuric acid?

Options:
A The reaction follows anti-Markovnikov addition.
B The reaction is exothermic.
C The product is an aldehyde.
D The presence of sulfuric acid is optional.

The correct answer is:
The reaction follows anti-Markovnikov addition.

Solution:
The addition of water to alkenes in the presence of concentrated sulfuric acid follows Markovnikov addition, not anti-Markovnikov addition.

Topic: Chemistry, Hydrocarbons, NEET
Which of the following statements is true regarding the moment of a couple?

Options:
A The moment of a couple depends on the point about which you take the moments.
B The moment of a couple does not depend on the point about which you take the moments.
C The moment of a couple is always zero.
D The moment of a couple is equal to the sum of the moments of its individual forces.

The correct answer is:
The moment of a couple does not depend on the point about which you take the moments.

Solution:
Correct Option is : (B)
The moment of a couple does not depend on the point about which you take the moments.

Topic: Chemistry, Rotational Motion, NEET
Which of the following statements is true regarding the reaction of alcohols and phenols with sodium?

Options:
A Alcohols and phenols act as bases.
B Alcohols and phenols act as reducing agents.
C Alcohols and phenols donate a proton to form alkoxides and phenoxides.
D Alcohols and phenols donate an electron to form sodium ions.

The correct answer is:
Alcohols and phenols donate a proton to form alkoxides and phenoxides.

Solution:
Alcohols and phenols donate a proton (H+) to form alkoxides and phenoxides.

Topic: Chemistry, Alcohols Phenols and Ethers, NEET
Which of the following statements is true regarding the use of primary alkyl halides in the Williamson ether synthesis?

Options:
A Primary alkyl halides are preferred because they lead to elimination reactions.
B Primary alkyl halides are preferred because they lead to substitution reactions.
C Primary alkyl halides are not suitable for this synthesis.
D Primary alkyl halides are used to prevent side reactions.

The correct answer is:
Primary alkyl halides are preferred because they lead to substitution reactions.

Solution:
Primary alkyl halides are preferred in the Williamson ether synthesis because they tend to undergo substitution reactions rather than elimination reactions.

Topic: Chemistry, Alcohols Phenols and Ethers, NEET
Which of the following statements is true?

Options:
A Spores are always diploid.
B Spores and gametes are diploid.
C Gametes are always haploid.
D Spores are gametes.

The correct answer is:
Gametes are always haploid.

Solution:
Gametes are always haploid in order to preserve the species genetically, anatomically and morphologically also. The embryo or zygote is formed due to the union of male and female gametes, (n + n = 2n). Hence, any species which is 2n is diploid in nature.

Topic: Biology, Reproduction in Organisms, NEET
Which of the following statements is wrong about lymph?

I. Lymph is colourful as it has haemoglobin but no RBC.
II. The fluid present in the lymphatic system is called lymph.
III. It contains specialized lymphocytes which are responsible for immunity of the body.
IV. Fats are absorbed through lymph in the lacteals present in the lymph nodes.

Options:
A I and IV
B III and IV
C II and III
D Only IV

The correct answer is:
I and IV

Solution:
Lymph is a colourless fluid devoid of haemoglobin pigment and containing specialized lymphocytes. It has the distribution of the same minerals as that in blood plasma. Fats are absorbed through lymph in the lacteals present in the intestinal villi.

Topic: Biology, Body Fluids and Circulation, NEET
Which of the following statements is wrong for viroids?

Options:
A They lack a protein coat
B They are smaller than viruses
C They cause infections
D Their RNA is of high molecular weight

The correct answer is:
Their RNA is of high molecular weight

Solution:
In viroids, RNA is of low molecular weight. Viroids, the smallest known pathogens, are naked, circular, single-stranded RNA molecules that do not encode protein yet replicate autonomously when introduced into host plants. Potato spindle tuber viroid, discovered in 1971, is the prototype; 29 other viroids have since been discovered ranging in length from 120 to 475 nucleotides. Viroids only infect plants; some cause economically important diseases of crop plants, while others appear to be benign.

Topic: Biology, Biological Classification, NEET, NEET 2016 (Phase 1)
Which of the following statements is wrong in the case of Bhopal tragedy?

Options:
A Methyl Isocyanate gas leakage took place
B Thousands of human beings died
C Radioactive fall out engulfed Bhopal
D It took place in the night of December 2/3 1984.

The correct answer is:
Radioactive fall out engulfed Bhopal

Solution:
The Bhopal gas tragedy was occured on the night of December 2-3, 1984 at the Union carbide India Limited pesticide plant in Bhopal, M.P. A leak of methyl isocyanate gas and other chemicals from the plant resulted in the exposure of hundreds of thousands of people.

Topic: Biology, Environmental Issues, NEET
Which of the following statement/s is/are an example of genetic engineering?

I. Inserting a gene for human insulin production into bacteria.
II. Selective breeding to produce cattle with high milk yields.
III. Using methods like crop rotation with leguminous plants to increase the fertility of the soil.
IV. Vegetative propagation and grafting are practised to ensure higher yield.

Options:
A I, II and IV
B II and III
C I and III
D Only I

The correct answer is:
Only I

Solution:
Techniques to alter the chemistry of genetic material (DNA and RNA), to introduce these into host organisms and thus change the phenotype of the host organism come under genetic engineering. Statement I is only one where the gene is been manipulated artificially to get the desired effect. Selective breeding can be considered as gene manipulation but there is no control on the outcome but chance.

Topic: Biology, Biotechnology - Principles and Processes, NEET
Which of the following statement/s is/are correct about crack?

Options:
A It interferes with transport of neurotransmitter dopamine.
B It produces a sense of euphoria.
C Excessive dosage causes hallucinations.
D All of these

The correct answer is:
All of these

Solution:
Coca alkaloid or cocaine is obtained from coca plant Erythroxylum coca, native to South America. It interferes with the transport of the neurotransmitter dopamine. Cocaine, commonly called coke or crack is usually snorted. It has a potent stimulating action on the central nervous system, producing a sense of euphoria and increased energy. An excessive dosage of cocaine causes hallucinations.

Topic: Biology, Human Health and Diseases, NEET
Which of the following statements is/are correct about hexagonal close packing?
1. the coordination number is 8
2. It is ABAB type packing in which third layer is aligned with the first layer
3. Be, Mg, Mo etc. are found to have hcp structure
4. In hcp, atoms occupy 74% of the available space

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

The correct answer is:
2, 3, 4

Solution:
In hexagonal close packing coordination number is 12 not 8 hence statement 1 is incorrect. Rest are correct here.

Topic: Chemistry, Solid State, NEET
Which of the following statements is/are correct for a polygenic inheritance?

1. They show uniformity.
2. Controlled by three or more genes.
3. It is not influenced by the environment.
4. In polygenic inheritance, phenotype reflects the contribution of recessive allele only.

Options:
A 1 and 2
B 2, 3 and 4
C 1, 3 and 4
D only 2

The correct answer is:
only 2

Solution:
When traits are controlled by three or more genes, they are called polygenic traits and their inheritance is called as polygenic inheritance. Human skin colour is a classic example following polygenic inheritance as the skin colour is regulated by three pairs of gene. Polygenic inheritance is influenced by the environment as well and not just the polygenes. In this inheritance, the phenotype reflects the contribution of each allele and not only the dominant ones. The effect of each allele is additive and donot show uniformity.

Topic: Biology, Principles of Inheritance and Variation, NEET
Which of the following statement/s is/are correct for aerobic muscles?

Options:
A Such muscle contains red coloured oxygen storing pigment called myoglobin.
B Such muscles contain a large number of mitochondria.
C They are also called red fibres.
D All of these

The correct answer is:
All of these

Solution:
Muscle contains a red coloured oxygen storing pigment called myoglobin. Myoglobin content is high in some of the muscles which give a reddish appearance. Such muscles are called red fibres. These muscles also contain plenty of mitochondria which can utilise a large amount of oxygen stored in them for ATP production. These muscles, therefore, can also be called aerobic muscles.

Topic: Biology, Locomotion and Movement, NEET
Which of the following statements is/are correct?
(i) In octahedral complexes, t2g orbitals posses low energy as compared to eg orbitals
(ii) In tetrahedral complexes, t2 orbitals posses high energy as compared to e orbitals
(iii) In octahedral complexes, eg orbitals possess low energy as compared to t2g orbitals

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

The correct answer is:
(i) and (ii)

Solution:
In octahedral complexes, t2g orbitals possess low energy as compared to eg orbitals while in tetrahedral complexes t2 orbitals possess high energy as compared to e orbitals.

Topic: Chemistry, Coordination Compounds, NEET
Which of the following statements is/are correct?

i. Melting point of alkane increases with increase in number of C atoms and with increase in branching

ii. Boiling point of alkane increases with increase in number of C atoms but with decrease in branching

iii. Cycloalkanes have lower boiling point than normal alkane with same number of C atoms

iv. Alkenes have lower boiling point than same number of C atoms in alkanes

Options:
A (I), (II)
B (I), (II), (III)
C (III), (IV)
D (IV)

The correct answer is:
(I), (II)

Solution:
Higher the intermolecular forces higher is the boiling point. because as the surface area increases the vandrwall force of attraction increases.
melting point depends on packing fraction, more braching ,surface area of molecules decreases and they become more compact and thus easier to pack hence melting point increases.

Topic: Chemistry, Hydrocarbons, NEET
Which of the following statements is/are incorrect?

(i) Green light falling in the range of wavelength 500 - 580 nm is least effective for photosynthesis.
(ii) In non-cyclic photophosphorylation, the electron expelled from the reaction center is not cycled back, though its loss is compensated by electrons from the photolysis of water.
(iii) Chl a, Chl b, carotenoids, and xanthophylls are insoluble in organic solvents.
(iv) 400 - 700 nm light is used in photosynthesis also known as PAR.
(v) Red light is the most effective for photosynthesis.

Options:
A (iv) and (v)
B (iii) and (v)
C (ii) and (v)
D (iv) only

The correct answer is:
(iv) only

Solution:
Green light is not absorbed and is reflected back hence it is least effective for photosynthesis. In non-cyclic photophosphorylation, the electron lost from reaction center of PSI is replenished from PSII while the electron lost from PSII is replenished by electrons from water produced during photolysis. Chlorophyll and carotenoids are insoluble in water but soluble in organic solvents. Red light is the most effective for photosynthesis. 400 - 700 nm light is used in photosynthesis also known as Photosynthetically Active Radiation.

Topic: Biology, Photosynthesis in Higher Plants, NEET
Which of the following statements is/are incorrect regarding roots?
(I) In Rhizophora, pneumatophores are found.
(II) Tap roots of carrot, turnip and adventitious roots of sweet potato, get swollen and store food.
(III) The stems of maize and sugarcane have supporting prop roots coming out of the lower nodes of the stem.

Options:
A I and II
B Only II
C II and III
D Only III

The correct answer is:
Only III

Solution:
Roots in some plants change their shape and structure. They become modified to perform functions other than absorption and conduction of water and minerals. They are modified for support, storage of food and respiration. Taproots of carrot, turnip and adventitious roots of sweet potato, get swollen and stores food. In banyan, the hanging roots for support are called prop roots. Similarly, the stems of maize and sugarcane have supporting roots coming out of the lower nodes of the stem. These are called stilt roots. In some plants such as Rhizophora growing in swampy areas, many roots come out of the ground and grow vertically upwards. Such roots, called pneumatophores, helps to get oxygen for respiration.

Topic: Biology, Morphology of Flowering Plants, NEET
Which of the following statements is/are not true?

Options:
A Density of solid gets increased due to interstitial defects
B Frenkel defects do not alter the density of the solid
C Non-stoichiometric defects modify the formula of the compound
D Non-stoichiometric defects do not alter the density of the solid

The correct answer is:
Non-stoichiometric defects do not alter the density of the solid

Solution:
Non – stoichiometric Schottky defect is a type of point defect. This defect is forms when oppositely charged ion leave their lattice site creating vacancies, thus lowers the density of crystal.

Topic: Chemistry, Solid State, NEET
Which of the following statements is/are true ?

Options:
A 2p has lower energy than 3s
B 3p has lower energy than 4s
C 3d has lower energy than 4p
D All of the above

The correct answer is:
All of the above

Solution:
Correct Option is : 4
All of the above

Topic: Chemistry, Structure of Atom, NEET
Which of the following statements is/are true?

(i) PH5 and BiCl5 do not exist

(ii) p Ï-d Ï bond is present in SO2

(iii) I3+ has bent geometry

(iv) SeF4 and CH4 have same shape

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

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

Solution:
(i) PH 5 does not exist because the electronegativity of H & P are almost same they should have sp 3 d hybridised but the H cannot distort the d orbital of P hence it is not exist while BiCl 5 Bi +3 is more stable than Bi +3 due to inert inert pair effect and in BiCl 5 steric crowding also present so it does not exist.
(ii) S=1 s 2 2 s 2 2 p 6 3 s 2 3 p 4 3 d 0
In exicited state
p & d orbital of sulphur & p orbital of oxygen involved in Ï bond so SO 2 has pÏâdÏ bond
(iii) I 3 +
2bp+2lp= sp 3 hybridisation
(iv) SeF4 & CH4

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
Which of the following statements is/are wrong ?

Options:
A 2p has lower energy than 3s
B 3p has lower energy than 4s
C 4p has lower energy than 3d
D None of the above

The correct answer is:
4p has lower energy than 3d

Solution:
Correct Option is : 3
4p has lower energy than 3d

Topic: Chemistry, Structure of Atom, NEET
Which of the following statement/s is/are WRONG?

I. Mammals from colder climates generally have shorter ears and limbs to minimise heat loss.
II. The UV component of the spectrum is harmful to many organisms.
III. The tiger census in our national parks and tiger reserves is often based on actual headcounts.
IV. Some desert plants like Opuntia, have no leaves - they are reduced to spines.
V. In brood parasitism, the parasitic bird lays its eggs in the nest of its host and does not allow the host incubate them.

Options:
A III only
B II and IV only
C III and V only
D I, II and IV only

The correct answer is:
III and V only

Solution:
Mammals from colder climates generally have shorter ears and limbs to minimise heat loss. This is called the Allenâs rule.
Exposure to higher concentration of UV rays can lead to mutation resulting in skin cancer. It can also cause permanent damage to the eyes by destroying the retinal cells. UV rays have been found to cause mutational changes in the immune cells and reducing the immune system.
In our country, every year, the tiger census is carried out based on their pug marks and fecal pellets of the tigers to determine the number of tigers in our country.
Some desert plants like Opuntia have adapted to survive in the extreme conditions by modifying their leaves to spine that reduces transpiration. Also, the stem is modified in thick flattened green structure that can perform photosynthesis.
Brood parasitism in birds is a fascinating example of parasitism in which the parasitic bird lays its eggs in the nest of its host and lets the host incubate them. During the course of evolution, the eggs of the parasitic bird have evolved to resemble the hostâs egg in size and colour to reduce the chances of the host bird detecting the foreign eggs and ejecting them from the nest.

Topic: Biology, Organisms and Populations, NEET
Which of the following statements not true for restriction enzyme which is used in genetic engineering?

Options:
A It recognizes a palindromic nucleotide sequence
B It is an endonuclease
C It is isolated from viruses
D It produces the same kind of sticky ends in different DNA molecules

The correct answer is:
It is isolated from viruses

Solution:
Restriction enzymes are produced by bacteria to restrict the growth of bacteriophage in them. The first restriction endonuclease Hind II was isolated from bacteria Haemophilus influenza, they identify a specific palindromic sequence and makes a cut within the specific recognition sequence.

Topic: Biology, Biotechnology - Principles and Processes, NEET
Which of the following statements provides the correct reason for the existence of ClF3but the absence of FCl3?

Options:
A Because chlorine is more electronegative than fluorine.
B Because fluorine is more electronegative than chlorine.
C Because chlorine has more valence electrons than fluorine.
D Because fluorine has more valence electrons than chlorine.

The correct answer is:
Because fluorine is more electronegative than chlorine.

Solution:
Correct Option is : (B)
Because fluorine is more electronegative than chlorine.

Topic: Chemistry, p Block Elements (Group 15, 16, 17 & 18), NEET