datavorous/entrance-exam-dataset huggingface dataset:
In the given reaction
CH 3 â CH 2 âCOOH â ii â Br 2 /Î i â AgNO 3 X will be

Options:
A Ethyl bromide
B Propyl bromide
C Propyl propanote
D All of these

The correct answer is:
Ethyl bromide

Solution:
CH 3 − CH 2 −COOH → AgNO 3 CH 3 − CH 2 −COOAg → Br 2 /Δ CH 3 − CH 2 −Br+AgBr+ CO 2 ↑

Topic: Chemistry, Carboxylic Acid Derivatives, NEET
In the given reaction
CH 3 CHO → ii    H 3 O + i   HCN/Ca (CN) 2 X
[X] will be

Options:
A Malonic acid
B Lactic acid
C Tartaric acid
D Mandelic acid

The correct answer is:
Lactic acid

Solution:
Here X is Lactic acid formed as follows

Topic: Chemistry, Aldehydes and Ketones, NEET
In the given reaction
COOH− (CH 2 ) 5 −COOH → Δ (X) , 'X' will be

Options:
A Monobasic acid
B Acid anhydride
C Cyclic ketone
D Open chain ketone

The correct answer is:
Cyclic ketone

Solution:
1,7-Dibasic acid on heating converts into a cyclic ketone (cyclohexanone) as follows

Topic: Chemistry, Carboxylic Acid Derivatives, NEET
In the given reaction
HCOONa → 400°C X + Y , (X) and (Y) will be

Options:
A and H2
B and H2
C and H2O
D and H2

The correct answer is:
and H2

Solution:
Here X is sodium oxolate and Y is hydrogen.

Topic: Chemistry, Carboxylic Acid Derivatives, NEET
In the given reaction, how many electrons are transferred per molecule of hydrogen (H2)2 Na(s) + H2(g) → 2 NaH (s)?

Options:
A 1 electron
B 2 electrons
C 4 electrons
D 0 electrons

The correct answer is:
2 electrons

Solution:
In the reaction, each molecule of hydrogen (H2) donates 2 electrons to form 2 NaH molecules.

Topic: Chemistry, Redox Reactions, NEET
In the given reaction mechanisms identify I?

Options:
A
B
C
D

The correct answer is:

Solution:
It is Reimer tiemann reaction and when ⋅⋅CCl2 attacks intermediate I is formed as follows

After formation of I rest mechanism is given in the question.

Topic: Chemistry, Alcohols Phenols and Ethers, NEET
In the given reaction

Product will be

Options:
A
B
C C6H5-COOH
D C6H5-CHOH-CHOH-C6H5

The correct answer is:

Solution:
Here a vicinal diol (product in option A) is formed as follows

Topic: Chemistry, Aldehydes and Ketones, NEET
In the given reaction sequence
C 6 H 5 −COOH → SOCl 2 (A) → NH 2 OH (B) → NaOH/Δ (C) , 'C' will be

Options:
A C6H5COCl
B C6H5-C||O-NHOH
C C6H5-NH2
D C6H5-N=C=O

The correct answer is:
C6H5-NH2

Solution:
Here the final product C is aniline and the reaction is as follows
C6H5-COOH→SOCl2C6H5-C||O-Cl(A)→NH2OHC6H5-C||O-NHOH(B)→NaOH[C6H5-N=C=O]→C6H5-NH2

Topic: Chemistry, Carboxylic Acid Derivatives, NEET
In the given reaction sequence

CH 3 CHO → ii   H 3 O + i  NaCN/HCl A → reagent Fenton B,

B will be

Options:
A Acetic acid
B Oxalic acid
C Pyruvic acid
D Citric acid

The correct answer is:
Pyruvic acid

Solution:
Here B is Pyruvic acid (2-oxo propanoic acid)

Topic: Chemistry, Aldehydes and Ketones, NEET
In the given reaction sequence

X will not be

Options:
A alc. KOH/ Î
B C 2 H 5 O − /Δ
C alc. NaOH/ Î
D NaNH2/Î

The correct answer is:
NaNH2/Δ

Solution:
Here X can not be NaNH2 as in presence of NaNH2 , chlorobenzene gives nucleophilic substitution reaction by benzyne mechanism as follows

Topic: Chemistry, Haloalkanes and Haloarenes, NEET
In the given reaction sequences the final product 'C' is

CH 3 − CH 2 −OH → (ii)  H 3 O + (i)  KMnO 4 / O − H/Δ (A) → (ii)  NH 3 (i)  SOCl 2 (B) → Br 2 /KOH (C)

Options:
A Methylamine
B Ethylamine
C Propylamine
D Acetamide

The correct answer is:
Methylamine

Solution:
In this reaction sequence the final product 'C' is methylamine
CH3-CH2-OH→[O]CH3-COOH→SOCl2CH3-COCl→NH3CH3-C||O-NH2→Br2/KOHCH3-NH2

Topic: Chemistry, Alcohols Phenols and Ethers, NEET
In the given reaction, the product P is

Options:
A

B

C

D

The correct answer is:

Solution:
The first step is the electrophilic addition reaction. Carbocation thus formed will again act as an electrophile and will attack at benzene ring and will give electrophilic substitution reaction.

Topic: Chemistry, Hydrocarbons, NEET, NEET 2016 (Phase 2)
In the given reaction, what is [B]?

Options:
A
B
C
D

The correct answer is:

Solution:
ROH+TsCl→ROTs , The Tosylate ion (TsO-) is good leaving hence substituted by -SN through SN2 mechanism.

Topic: Chemistry, Haloalkanes and Haloarenes, NEET
In the given reaction, which minor product is possible but not reported?

Options:
A 2-Methylpentane
B 3-Methylpentane
C n-Hexane
D n-Butane

The correct answer is:
n-Hexane

Solution:
While n-Hexane is not the major product, it is possible as a minor product in the isomerization reaction, but it is generally not reported as it is less likely to form in significant quantities.

Topic: Chemistry, Hydrocarbons, NEET
In the given reaction, which type of isomerism is primarily observed?

Options:
A Structural isomerism
B Geometric isomerism
C Chain isomerism
D Position isomerism

The correct answer is:
Structural isomerism

Solution:
The given reaction involves the conversion of straight-chain alkanes to branched-chain alkanes, resulting in a change in the structural arrangement of atoms. This is an example of structural isomerism.

Topic: Chemistry, Hydrocarbons, NEET
In the given reaction
,
(X) and (Y) respectively be

Options:
A
B
C
D None of these

The correct answer is:

Solution:
Here X and Y are formed as follows

Topic: Chemistry, Carboxylic Acid Derivatives, NEET
In the given reaction

[X] will be:

Options:
A
B
C
D CH3–CH=CH2

The correct answer is:

Solution:
Epoxypropane reacts with CH3MgBr to give butan-2-ol as follows
It is S N 2 reaction.

Topic: Chemistry, Alcohols Phenols and Ethers, NEET
In the given reaction

[X] will be

Options:
A
B
C Mixture of A and B
D None of these

The correct answer is:
Mixture of A and B

Solution:
This reaction is SN1 reaction, hence racemic mixture is formed as follows:

Topic: Chemistry, Haloalkanes and Haloarenes, NEET
In the given reaction

(X) will be

Options:
A CH2N2
B CH3OH
C CH3COOH
D Both CH2N2 and CH 3 OH/H 2 SO 4

The correct answer is:
Both CH2N2 and CH 3 OH/H 2 SO 4

Solution:
Here X can be CH2N2 and CH3OH and the reaction is as follows

Topic: Chemistry, Carboxylic Acid Derivatives, NEET
In the given reaction

(X) will be

Options:
A
B
C
D

The correct answer is:

Solution:
The reaction is Claisen ester condensation ester between ester and ketone as follows

Topic: Chemistry, Aldehydes and Ketones, NEET
In the given reaction

'X' will be

Options:
A
B CH2=CH-(CH2)3-CH2OH
C
D

The correct answer is:

Solution:
Here the given product X is and the reaction is as follows

Topic: Chemistry, Alcohols Phenols and Ethers, NEET
In the given reaction

X will be

Options:
A
B
C
D CH3-CH=CH-CH2-CH3

The correct answer is:

Solution:
Here 2-methyl-butene is the major product as follows

Topic: Chemistry, Haloalkanes and Haloarenes, NEET
In the given reaction
, 'X' will be

Options:
A C6H5-CH2OH
B C6H5COOH
C C6H5CONH2
D

The correct answer is:

Solution:
N, N-dialkylamide on reduction with LiAlH4 converts into tertiary amine.

Topic: Chemistry, Carboxylic Acid Derivatives, NEET
In the given reaction [X] will be

Options:
A Zn/HCl
B Sn/HCl
C LiAlH4
D HCHO/OΘH

The correct answer is:
HCHO/OΘH

Solution:
Here X HCHO/OΘH and the reactions are as follows

Topic: Chemistry, Aldehydes and Ketones, NEET
In the given reaction

(X) will be

Options:
A Butanal
B Butanone
C 2-butanol
D 1-butanol

The correct answer is:
Butanal

Solution:
Alkynes undergo hydroboration to give carbonyl compound by Anti Markonikov reaction

Topic: Chemistry, Hydrocarbons, NEET
In the given reaction

'X' will be

Options:
A
B
C CH3-CH=CH-COONa
D CH3-CH=CH-COOH

The correct answer is:
CH3-CH=CH-COONa

Solution:
β -Haloacid gives α,β -elimination reaction with base. The product of the reaction is always α,β -unsaturated acid. Here Crotonic acid is formed

Topic: Chemistry, Haloalkanes and Haloarenes, NEET
In the given reaction

X will be

Options:
A
B CH2=CH-(CH2)3-CH2OH
C
D

The correct answer is:

Solution:
Here Oxocyclohexane is formed as follows

Topic: Chemistry, Alcohols Phenols and Ethers, NEET
In the given reaction

(X) will be

Options:
A C6H5-CHO
B C6H5COOH
C C6H5-CH2OH
D CH3COOH

The correct answer is:
C6H5COOH

Solution:

Topic: Chemistry, Aldehydes and Ketones, NEET
In the given reaction

[X] will be

Options:
A
B
C CH3-CH=CH-CH3
D CH3-CH2-CH=CH2

The correct answer is:

Solution:
Here the reaction is as follows by using E1 mechanism

Topic: Chemistry, Haloalkanes and Haloarenes, NEET
In the given reaction

[X] will be

Options:
A C6H5NH2
B C6H5NHOH
C p-amino phenol
D Hydrazobenzene

The correct answer is:
p-amino phenol

Solution:
Here X is para amino phenol

Topic: Chemistry, Amines, NEET
In the given reaction

[X] will be

Options:
A Mixture of syn and anti oxime
B Only syn oxime
C Only anti oxime
D Reaction will not take place (NR)

The correct answer is:
Mixture of syn and anti oxime

Solution:

Topic: Chemistry, Aldehydes and Ketones, NEET
In the given reaction

[Y] will be

Options:
A
B
C
D

The correct answer is:

Solution:
The reaction is as follows

Topic: Chemistry, Aldehydes and Ketones, NEET
In the given reaction:

Options:
A
B
C
D

The correct answer is:

Solution:
Reaction proceeds through SN1 mechanism, carbocation formed is stabilised by lone pair of oxygen atom.

Topic: Chemistry, Haloalkanes and Haloarenes, NEET
In the given reversible reaction, A2(g)+4B2(g) ⇌ 2AB4(g) , if ΔH<0 the formation of AB4 is will be favoured at

Options:
A High temperature, high pressure
B High temperature, low pressure
C Low temperature, low pressure
D Low temperature, high pressure

The correct answer is:
Low temperature, high pressure

Solution:
According to Le-Chatelier principle exothermic reaction is forwarded by low temperature, in forward direction number of moles is less, hence pressure is high.

Topic: Chemistry, Chemical Equilibrium, NEET
In the given scenario, is the weight of the door responsible for any torque around the vertical axis? Explain your choice.

Options:
A Yes, because the weight exerts a force parallel to the axis.
B No, because the weight creates torque only along the ±z direction.
C Yes, because the weight acts normal to the surface of the door.
D No, because the door's weight cannot generate torque around the y-axis.

The correct answer is:
No, because the weight creates torque only along the ±z direction.

Solution:
Correct Option is : (B)
No, because the weight creates torque only along the ±z direction.

Topic: Chemistry, Rotational Motion, NEET
In the given schematic diagram, which is plastocyanin?

Options:
A C
B D
C A
D B

The correct answer is:
D

Solution:
Plastocyanin is a copper-containing protein that plays a role in the electron transport process associated with photosynthesis. It serves as an electron transfer agent between the cytochrome complex which follows photosystem II and the entry point to photosystem I of the non-cyclic electron transfer process.

Topic: Biology, Photosynthesis in Higher Plants, NEET
In the given segment DNA strand the base sequence on the opposite strands are same when read in opposite direction. Such sequences are known as

5â_____ GAATTCC _____ 3â

3â_____ CTTAAG _____ 5â

Options:
A Replication sequence
B Deletion mutation
C origin of replication.
D Palindromic sequence of base pairs.

The correct answer is:
Palindromic sequence of base pairs.

Solution:
The palindrome in DNA is a sequence of base pairs that reads same on the two strands when orientation of reading is kept the same. For example, the following sequences read the same on the two strands in 5’ to 3’ direction. This is also true if read in the 3’ to 5’ direction. Such sequences are identified by restriction enzyme for cutting DNA.

Topic: Biology, Molecular Basis of Inheritance, NEET
In the given sequence

HOCH2-CHOH-CH2OH→Br2/H2OA+B→dil.NaOH(X) ,

X is

Options:
A Glyceraldehyde
B Dihydroxyacetone
C Fructose
D Glucose

The correct answer is:
Fructose

Solution:
Here X is fructose and the reaction sequence is as follows

Topic: Chemistry, Alcohols Phenols and Ethers, NEET
In the given sequence of reaction, identify X and Y

Options:
A C6H5-CH2OH
B C6H5-COOH
C C6H5-CHOH-COOH
D C6H5-CO-COOH

The correct answer is:
C6H5-CHOH-COOH

Solution:
Here the reaction is as follows

Topic: Chemistry, Aldehydes and Ketones, NEET
In the given sequence of reaction the final product (C) is
CH3COOH→LiAIH4(A)→I2+NaOH(B)→Ag(Dust)(C)

Options:
A C2H5OH
B CH3COCH3
C C2H2
D C2H5I

The correct answer is:
C2H2

Solution:
CH3COOH→LiAlH4CH3CH2OH
CH3CH2OH→I2/NaOHCHI3→AgC2H2

Topic: Chemistry, Carboxylic Acid Derivatives, NEET
In the given set of statements regarding the tissues found in animals, determine the option that has the correct combination of true and false statements.

I. Cartilage is present in tip of nose and between the bodies of adjacent vertebrae.

II. Adhering junctions along with cementing cells together also facilitate the cells to communicate with each other by connecting the plasma membranes of adjoining cells.

III. Compound epithelium covers the moist surface of buccal cavity, pharynx and lining of ducts of salivary glands.

IV. Striated muscle fibre is thin elongated with point ends and multiple nuclei

Options:
A I: True, II: False, III: True, IV: False
B I: True, II: True, III: True, IV: False
C I: False, II: False, III: True, IV: False
D I: True, II: False, III: False, IV: True

The correct answer is:
I: True, II: False, III: True, IV: False

Solution:
I. Cartilage is present in the tip of nose, outer ear joints, between adjacent bones of the vertebral column, limbs and hands in adults. II. Adhering junctions perform cementing to keep neighbouring cells together. III. Compound epithelium cover the dry surface of the skin, the moist surface of buccal cavity, pharynx, inner lining of ducts of salivary glands and of pancreatic ducts.IV. Striated muscle fibre is thin elongated with blunt ends and multiple nuclei.

Topic: Biology, Structural Organisation in Animals, NEET
In the given surgical method below, which of the following statement is incorrect?

Options:
A A small portion of the fallopian tube is removed.
B It is also known as sterilisation.
C A small incision is made through the uterus.
D It is an irreversible method of contraception.

The correct answer is:
A small incision is made through the uterus.

Solution:
The figure shows the tubectomy. This is a surgical method to prevent pregnancy in women. In tubectomy small part of the fallopian tube is removed or tied through a small cut in the abdomen or through vagina. It is very effective method but reversibility is very poor.

Topic: Biology, Reproductive Health, NEET
In the given system a capacitor of plate area A is charged up to charge q . The mass of each plate is m2 . The lower plate is rigidly fixed. Find the value of m1 so that the system is in equilibrium -

Options:
A m2+q2Îµ0Ag
B m2
C q22Aε0g+m2
D None of these

The correct answer is:
q22Aε0g+m2

Solution:
T=Fe+m2g ….1 for upper plate
T=m1g ….2 for m1
∴ m1g=q22Aε0+m2g
⇒m1=q22Aε0g+m2

Topic: Physics, Electrostatics, NEET
In the given table, each phylum is paired with a set of characters. Select the option with an incorrect set of information about the given phyla of animals.

I. Echinodermata	P - Radula for feeding; Q - Water vascular system

II. Aschelminthes	R - Complete alimentary canal with muscular pharynx; S - Internal fertilization

III. Ctenophora	T - Internal fertilization; U - Sexual reproduction only

Options:
A R, S, T
B P, T
C P, S, T
D P, Q, U

The correct answer is:
P, T

Solution:
P. Radula is a file-like rasping organ in the mouth of molluscs that helps in feeding.
T. In Ctenophora, only sexual reproduction is observed. They are hermaphrodites with external fertilization and indirect development.

Topic: Biology, Animal Kingdom, NEET
In the given ( $V-T)$ diagram, what is the relation between pressures $p_1$ and $p_2$ ?

Options:
A $p_2=p_1$
B $p_2>\rho_1$
C $p_2 < p_1$
D Cannot be predicted

The correct answer is:
$p_2 < p_1$

Solution:
The slope of the graph $\propto \frac{1}{p}$

Topic: Physics, Thermodynamics, NEET, NEET 2013 (All India)
In the glass capillary tube, the shape of the surface of the liquid depends upon

Options:
A only on the cohesive force of liquid molecules
B only on the adhesive force between the molecules of glass and liquid
C only on relative cohesive and adhesive force between the atoms
D neither on cohesive nor on adhesive force

The correct answer is:
only on relative cohesive and adhesive force between the atoms

Solution:
cos⁡θ=TSA-TSLTLA
From this diagram, angle of contact depends on surface tension due to solid, liquid and gas(air) all the three

Topic: Physics, Mechanical Properties of Fluids, NEET
In the Grignard reaction, what role does the Grignard reagent play?

Options:
A Acid
B Base
C Nucleophile
D Electrophile

The correct answer is:
Nucleophile

Solution:
The Grignard reagent acts as a nucleophile in the reaction.

Topic: Chemistry, Alcohols Phenols and Ethers, NEET
In the Grignard reaction, what type of bond is formed between the carbon atom of the Grignard reagent and the carbon atom of the carbonyl group?

Options:
A Sigma (σ) bond
B Pi (π) bond
C Covalent bond
D Ionic bond

The correct answer is:
Sigma (σ) bond

Solution:
A sigma bond is formed between the carbon atoms in the Grignard reaction.

Topic: Chemistry, Alcohols Phenols and Ethers, NEET
In the Haber's process of ammonia manufacture,
N2(g)+3H2(g)→2NH3(g)
The rate of appearance of NH3 is
d[NH3]dt=2×10-4molL-sec-1
The rate of disppearance of N2 and H2 will be

Rate in terms of H2 (mol L-1sec-1 )
Rate in terms of N2 (mol L-1sec-1 )

Options:
A

3×10-4
2×10-4

B

3×10-4
1×10-4

C

1×10-4
3×10-4

D

2×10-4
2×10-4

The correct answer is:

3×10-4
1×10-4

Solution:
Rate =+12d[NH3]dt=d[N2]dt=-13d[H2]dt
-d[H2]dt=32×d[NH3]dt
=32×2×10-4=3×10-4molL-1sec-1
-d[N2]dt=12d[NH3]dt=12×2×10-4
=1×10-4molL-1sec-1

Topic: Chemistry, Chemical Kinetics, NEET
In the half-reaction method for balancing chemical equations, what is added to balance O atoms in reactions occurring in acidic medium?

Options:
A H2O
B CO2
C O2
D HCl

The correct answer is:
H2O

Solution:
In the half-reaction method for reactions occurring in acidic medium, H2O is added to balance O atoms.

Topic: Chemistry, Redox Reactions, NEET
In the halogenation of arenes, what is the role of the halogen (e.g., chlorine or bromine)?

Options:
A To act as a solvent
B To serve as a reducing agent
C To provide color to the reaction mixture
D To provide halogen atoms for substitution

The correct answer is:
To provide halogen atoms for substitution

Solution:
The halogen in the halogenation of arenes provides halogen atoms that replace hydrogen atoms on the aromatic ring, resulting in the formation of haloarenes.

Topic: Chemistry, Hydrocarbons, NEET
In the halogenation of benzene with chlorine (Cl2) in the presence of FeCl3, what is the major product formed?

Options:
A Chlorobenzene
B Bromobenzene
C Iodobenzene
D Fluorobenzene

The correct answer is:
Chlorobenzene

Solution:
In the presence of FeCl3, benzene undergoes halogenation with chlorine to yield chlorobenzene as the major product.

Topic: Chemistry, Hydrocarbons, NEET
In the haplodiploid sex:determination system of honey bees, which gender is produced from the union of a sperm and an egg?

Options:
A Male
B Queen
C Worker
D Both queen and worker

The correct answer is:
Both queen and worker

Solution:
An offspring formed from the union of a sperm and an egg develops as a female, which can be either a queen or a worker bee.

Topic: Biology, Principles of Inheritance and Variation, NEET
In the Hardy–Weinberg equation, the frequency of heterozygous individual is represented by

Options:
A p2
B pq
C 2pq
D q2

The correct answer is:
2pq

Solution:
The HardyâWeinberg equation is p2+ 2pq + q2 = 1
where,
p: frequency of the 'A' allele
q: frequency of the 'a' allele
p2: frequency of the homozygous genotype AA
q2: frequency of the homozygous genotype aa
2pq: frequency of the heterozygous genotype Aa.

Topic: Biology, Evolution, NEET
In the Hatch & Slack cycle, the enzyme required to convert pyruvate into phospho-enol pyruvate is

Options:
A Pyruvate dehydrogenase
B PEP carboxylase
C Phosphoenol pyruvate dikinase
D Phosphoenol pyruvate carboxylase

The correct answer is:
Phosphoenol pyruvate dikinase

Solution:
In Hatch and slack cycle conversion of Pyruvate to phosphoenol pyruvate occurs in mesophyll cell and the reaction is catalysed by enzyme phosphoenol pyruvate dikanase.

Topic: Biology, Photosynthesis in Higher Plants, NEET
In the HCl molecule, the separation between the nuclei of the two atoms is about 1.27 Å . What is the approximate location of the CM of the molecule, given that a chlorine atom is about 35.5 times as massive as a hydrogen atom and nearly all the mass of an atom is concentrated in its nucleus.

Options:
A the centre of mass of the HCl molecule lies 0.027 A˚ from the Cl atom
B the centre of mass of the HCl molecule lies 0.035 A˚ from the Cl atom
C the centre of mass of the HCl molecule lies 0.065 A˚ from the Cl atom
D the centre of mass of the HCl molecule lies 0.073 A˚ from the Cl atom

The correct answer is:
the centre of mass of the HCl molecule lies 0.035 A˚ from the Cl atom

Solution:
Correct Option is : (B)
the centre of mass of the HCl molecule lies 0.035 A˚ from the Cl atom

Topic: Chemistry, Rotational Motion, NEET
In the hexaploid wheat, the haploid ( $n$ ) and basic $(x)$ numbers of chromosomes are:

Options:
A $n=21$ and $x=21$
B $n=21$ and $x=14$
C $n=21$ and $x=7$
D $n=7$ and $x=21$.

The correct answer is:
$n=21$ and $x=7$

Solution:
The basic number $(x)$ of chromosomes in wheat is 7 so, $6 x=2 x=42$ and $n$ $=21$
Related Theory
Triticum aestivum is known that hexaploid common wheat has stronger adaptability to many stressful environments than its tetraploid wheat progenitor.

Topic: Biology, Sexual Reproduction in Flowering Plants, NEET, NEET 2007
In the hexose monophosphate shunt pathway, the number of CO2 molecules evolved is _________.

Options:
A same as in glycolysis
B less than glycolysis
C more than glycolysis
D much lesser than glycolysis

The correct answer is:
more than glycolysis

Solution:
Carbon dioxide evolved in HMP is higher than glycolysis. In this cycle for every molecule of CO2 released 2 NADPH2 are synthesized. Therefore, the complete oxidation of one glucose molecule would produce 6 CO2 molecules or 6×2=12 NADPH2 molecules.
Since each NADPH2 on its passage through the electron transport chain yields 3ATP, therefore, 12 NADPH2 would yield (12×3)=36 ATP molecules.
Net gain of ATP is 36 -1 = 35 ATP

Topic: Biology, Respiration in Plants, NEET
In the Hoffmann bromamide degradation reaction, what is the role of bromine (Br2)?

Options:
A It acts as a catalyst.
B It serves as an oxidising agent.
C It initiates the migration of the alkyl or aryl group.
D It stabilizes the amide compound.

The correct answer is:
It initiates the migration of the alkyl or aryl group.

Solution:
Bromine (Br2) plays a crucial role in initiating the migration of the alkyl or aryl group from the carbonyl carbon to the nitrogen atom in the Hoffmann bromamide degradation.

Topic: Chemistry, Amines, NEET
In the Hofmann bromamide degradation reaction, the number of moles of NaOH and Br2 used per mole of amine produced are

Options:
A Four moles of NaOH and one mole of Br2
B one mole of NaOH and one mole of Br2
C Four moles of NaOH and two moles of Br2
D Two moles of NaOH and two moles of Br2

The correct answer is:
Four moles of NaOH and one mole of Br2

Solution:
Here 4 moles of NaOH and one mole of Br2 is required for the production of 1 mole of primary amine as follows

Topic: Chemistry, Amines, NEET
In the human body, _______ of water occurs inside the cells as intracellular water, while _______ of water is present in all extracellular fluids.

Options:
A 55% and 45%
B 60% and 40%
C 45% and 55%
D 40% and 60%

The correct answer is:
55% and 45%

Solution:
In the human body 55% of water occurs inside the cells as intracellular water, while 45% of water is present in all extracellular fluids like blood, lymph, tissue fluid, cerebrospinal fluid and coelomic fluid, etc.

Topic: Biology, Organisms and Populations, NEET