datavorous/entrance-exam-dataset huggingface dataset:
Where do certain symbiotic microorganisms normally occur in human body?

Options:
A Caecum
B Oral lining and tongue surface
C Vermiform appendix and rectum
D Duodenum

The correct answer is:
Caecum

Solution:
Caecum is the proximal part of large intestine. It is connected to colon (the largest part of large intestine). Colon does not contain digestive gland but harbours a number of microorganisms which feed on indigestible matter, some of them are symbiotic. They produce vitamin-K and vitamin-B complex.

Topic: Biology, Digestion and Absorption, NEET, NEET 2012 (Mains)
Where do plants mainly obtain carbon, hydrogen, and oxygen from?

Options:
A Soil
B CO2 and H2O
C Fertilizer
D Air

The correct answer is:
CO2 and H2O

Solution:
Carbon, hydrogen, and oxygen are mainly obtained from CO2 and H2O, not from soil, fertilizer, or air.

Topic: Biology, Mineral Nutrition, NEET
Where do the less basic metals go during electrolytic refining?

Options:
A To the anode mud
B To the cathode
C They remain in the solution
D They evaporate

The correct answer is:
To the anode mud

Solution:
Less basic metals settle as anode mud during the electrolytic refining process.

Topic: Chemistry, General Principles and Processes of Isolation of Metals, NEET
Where do the molecules remain in the case of adsorption?

Options:
A Deeper into the bulk
B Only at the surface
C Inside the solid or liquid
D Both at the surface and deeper into the bulk

The correct answer is:
Only at the surface

Solution:
The molecules remain only at the surface and do not go deeper into the bulk in the case of adsorption.

Topic: Chemistry, Surface Chemistry, NEET
Where does the maximum absorption of substances occur in the alimentary canal?

Options:
A The mouth
B The stomach
C The small intestine
D The large intestine

The correct answer is:
The small intestine

Solution:
Absorption of substances takes place in different parts of the alimentary canal, like mouth, stomach, small intestine and large intestine. However, maximum absorption occurs in the small intestine. The small intestine is the main site of nutrient absorption in the body, as it has a large surface area and is lined with special cells that actively transport nutrients across the cell membrane.

Topic: Biology, Digestion and Absorption, NEET
Where does the water present in the egg go after boiling the egg?

Options:
A The water is present in it is absorbed by the coagulated globular protein of the egg through H-bonding
B The water evaporates into the air.
C The water combines with the proteins in the egg and forms a gel-like structure.
D The water remains within the egg, but its phase changes to gas during boiling.

The correct answer is:
The water is present in it is absorbed by the coagulated globular protein of the egg through H-bonding

Solution:
Correct Option is : (A)
The water is present in it is absorbed by the coagulated globular protein of the egg through H-bonding

Topic: Chemistry, Biomolecules, NEET
Where is the experimental data for magnetic moments primarily obtained from?

Options:
A Gas-phase ions
B Hydrated ions in solution or in the solid state
C Ferromagnetic materials
D Diamagnetic materials

The correct answer is:
Hydrated ions in solution or in the solid state

Solution:
The experimental data for magnetic moments are mainly for hydrated ions in solution or in the solid state.

Topic: Chemistry, d and f Block Elements, NEET
Where is the stomach located in the human body?

Options:
A Lower right side of the abdominal cavity
B Lower left side of the abdominal cavity
C Upper right side of the abdominal cavity
D Upper left side of the abdominal cavity

The correct answer is:
Upper left side of the abdominal cavity

Solution:
The stomach, located in the upper left portion of the abdominal cavity, has four major parts – a cardiac portion into which the oesophagus opens, a fundic region, body (main central region) and a pyloric portion which opens into the first part of small intestine.

Topic: Biology, Digestion and Absorption, NEET
Where Nu = Nucleophile

Find out the correct statement from the options given below for the above two reactions.

Options:
A Reaction (I) is of 2nd order and reaction (II) is of 1st order
B Reactions (I) and (II) both are of 2nd order
C Reactions (I) is of 1st order and reaction (II) is of 2 nd order
D Reaction (I) and (II) both are of 1st order

The correct answer is:
Reactions (I) is of 1st order and reaction (II) is of 2 nd order

Solution:
The SN1 reactions takes place via formation of carbocation. The speed of the reaction depends on the stability of carbocation. Electron releasing groups supports the SN1 reactions. The SN2 reactions are takes place through the formation of transition state. The transition can be stabilised by electron withdrawing groups.

Topic: Chemistry, General Organic Chemistry, JEE Main, JEE Main 2023 (11 Apr Shift 1)
Which acid is known to be the main constituent of vinegar?

Options:
A Citric acid
B Acetic acid
C Tartaric acid
D Ascorbic acid

The correct answer is:
Acetic acid

Solution:
The paragraph states that acetic acid is known to be the main constituent of vinegar.

Topic: Chemistry, Ionic Equilibrium, NEET
Which acid is strongest or Which is most acidic

Options:
A $\mathrm{Cl}_2 \mathrm{CH} \cdot \mathrm{COOH}$
B $\mathrm{ClCH}_2 \mathrm{COOH}$
C $\mathrm{CH}_3 \mathrm{COOH}$
D $\mathrm{Cl}_3 \mathrm{C} . \mathrm{COOH}$

The correct answer is:
$\mathrm{Cl}_3 \mathrm{C} . \mathrm{COOH}$

Solution:
Presence of -I effect chlorine atom increases the acidic nature by withdrawing electrons
\(\underset{\substack{\text{Trichloroacetic} \\ \text{acid(Most acidic)} }}{\mathrm{Cl}_3 \mathrm{CCOOH}} > \underset{\text{Dichloro acetic acid}}{\mathrm{Cl}_2 \mathrm{CHCOOH}} > \underset{\text{Monochloro acetic acid}}{\mathrm{Cl}-\mathrm{CH}_2-\mathrm{COOH}} > \underset{\text{Acetic acid (Least acidic)}}{\mathrm{CH}_3 \mathrm{COOH}}\)

Topic: Chemistry, Carboxylic Acid Derivatives, JEE Main
Which acid will not form hydrocarbon

Options:
A Cinnamic acid
B Isothallic acid
C Salicylic acid
D Picric acid

The correct answer is:
Picric acid

Solution:
2, 4, 6 trinitrophenol (Picric acid)

Topic: Chemistry, Hydrocarbons, JEE Main
Which amino acid has aromatic ring

Options:
A Alamine
B Glycine
C Tyrosine
D Lysine

The correct answer is:
Tyrosine

Solution:
Aromatic amino acids possess ring structure in the side chain. eg., tyrosine, phenylalanine, tryptophan.

Topic: Chemistry, Biomolecules, JEE Main
Which among the above compound/s does/do not form Silver mirror when treated with Tollen's reagent?

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

The correct answer is:
Only (II)

Solution:
Aldehyde, alpha-hydroxy ketone and hemiacetals give positive Tollen's test. Enol which can get converted into aldehyde through tautomerism are also give positive Tollen's test.

(I) is aldehyde, (II) get converted into ketones through tautomerism, (III) get converted into aldehyde through tautomerism and (IV) is hemiacetal so, (II) will not give positive Tollen's test.

Topic: Chemistry, Aldehydes and Ketones, JEE Main, JEE Main 2021 (20 Jul Shift 1)
Which among the following aldehydes is most reactive towards nucleophilic addition reactions?

Options:
A

B

C

D

The correct answer is:

Solution:

Topic: Chemistry, Aldehydes and Ketones, JEE Main, JEE Main 2024 (06 Apr Shift 1)
Which among the following cations will form lowest stability complex if the ligand remains the same?

Options:
A $\mathrm{Cu}^{2+}$
B $\mathrm{Fe}^{2+}$
C $\mathrm{Cd}^{2+}$
D $\mathrm{Ni}^{2+}$

The correct answer is:
$\mathrm{Cd}^{2+}$

Solution:
The stability of metal complex increases with decrease in size of the metal cations. $\mathrm{Cd}^{2+}$ has highest size among given cations, so it will form lowest stability complex

Topic: Chemistry, Coordination Compounds, MHT CET, MHT CET 2021 (23 Sep Shift 1)
Which among the following compounds does not act as a reducing agent?

Options:
A H 2 O
B H 2 S
C H 2 Se
D H 2 Te

The correct answer is:
H 2 O

Solution:
Due to high HâO bond strength, H 2 O do not act as reducing agent, where as rest of then act as reducing agents.
→ Reducing action increases H 2 S   H 2 Se   H 2 Te
due to decrease in HâE bond strength.

Topic: Chemistry, s Block Elements, JEE Main
Which among the following compounds is most acidic?

Options:
A C6H5COOH
B ClCH2COOH
C BrCH2COOH
D O2NCH2CH2COOH

The correct answer is:
ClCH2COOH

Solution:
Any electron withdrawing substituent (having -I effect) stabilises the anion by dispersing the negative charge and therefore, increases the acidity. Chlorine is an electron withdrawing group present at minimum distance.

Topic: Chemistry, General Organic Chemistry, JEE Main
Which among the following compounds will undergo fastest \(\mathrm{S}_{\mathrm{N}} 2\) reaction.

Options:
A

B

C

D

The correct answer is:

Solution:
Rate of $\mathrm{SN}^2$ is $\mathrm{Me}-\mathrm{x}>1^{\circ}-\mathrm{x}>2^{\circ}-\mathrm{x}>3^{\circ}-\mathrm{x}$

Topic: Chemistry, Haloalkanes and Haloarenes, JEE Main, JEE Main 2024 (08 Apr Shift 1)
Which among the following elements has the highest first ionization enthalpy?

Options:
A
Nitrogen

B
Boron

C
Carbon

D
Oxygen

The correct answer is:
Nitrogen

Solution:
Due to stable $2 s^2 2 p^3$ configuration. (half filled $p$-orbital) Nitrogen atom has highest energy.

Topic: Chemistry, Classification of Elements and Periodicity in Properties, JEE Main, JEE Main 2012 (12 May Online)
Which among the following elements have lowest value of IE 1 ?

Options:
A Pb
B Sn
C Si
D C

The correct answer is:
Sn

Solution:
Ionisation energy of carbon group follows the order C > Si > Ge > Pb > Sn.
IE Pb â>â IE Sn because of poor shielding effect of electrons resulting in lanthanide contraction.

Topic: Chemistry, Classification of Elements and Periodicity in Properties, JEE Main
Which among the following expressions is the correct for the magnetic field at the site of the nucleus in a hydrogen atom due to the circular motion of the electron? Assume that the atom is in its ground state and the expressions are given in terms of the fundamental constants.
where m = mass of an electron, e = charge of an electron, h = planck's constant)

Options:
A μ0e7πm28ε03h5
B μ0e5πm28ε03h5
C Î¼0e5Ïm28Îµ03h4
D Î¼0e7Ïm28Îµ03h4

The correct answer is:
μ0e7πm28ε03h5

Solution:
We have
mv2r=e24πε0r2
or, v2r=e24πε0m ...(i)
From Bohr's quantization rule, in ground state,
vr=h2πm· ...(ii)
From (i) and (ii),
v=e22ε0h ...(iii)
and r=ε0h2πme2 ...(iv)
As the electron moves along a circle, it crosses any point on the circle v2πr times per unit time. The charge crossing per unit time, that is the current, is i = ev2πr. The magnetic field at the centre due to this circular current is
B=μ0i2r=μ0ev4πr2
From (iii) and (iv),
B=μ0e4πe22ε0h×π2m2e4ε02h4
=μ0e7πm28ε03h5

Topic: Physics, Atomic Physics, JEE Main
Which among the following factors is the most important in making fluorine the strongest oxidizing halogen?

Options:
A
Electron affinity

B
Bond dissociation energy

C
Hydration enthalpy

D
Ionization enthalpy

The correct answer is:
Bond dissociation energy

Solution:
No Solution Available

Topic: Chemistry, p Block Elements (Group 15, 16, 17 & 18), JEE Main, JEE Main 2004
Which among the following gases is adsorbed to greater extent at similar conditions of temperature and pressure if the adsorbent remains same?

Options:
A $\mathrm{N}_2$
B $\mathrm{Cl}_2$
C $\mathrm{H}_2$
D $\mathrm{O}_2$

The correct answer is:
$\mathrm{Cl}_2$

Solution:
- Gas having higher critical temperature is adsorbed to greater extent.
$\begin{array}{llll}\mathrm{H}_2 & 33.145 \mathrm{~K} & \mathrm{O}_2 & 154.60 \mathrm{~K} \\ \mathrm{~N}_2 & 126.19 \mathrm{~K} & \mathrm{Cl}_2 & 417 \mathrm{~K}\end{array}$

Topic: Chemistry, States of Matter, MHT CET, MHT CET 2021 (21 Sep Shift 2)
Which among the following given properties is not a state function

Options:
A Internal energy
B Enthalpy
C Work
D Entropy

The correct answer is:
Work

Solution:
Work is not a state function as during a process its value depends on the path followed. The value of enthalpy, internal energy and entropy depends on the state and not on the path followed to get that state, hence these are state functions.

Topic: Chemistry, Thermodynamics (C), JEE Main
Which among the following has a Hydrogen-like spectrum and whose lines have wavelengths four times shorter than those of atomic Hydrogen?

Options:
A Helium ion
B Beryllium ion
C Lithium ion
D None of these

The correct answer is:
Helium ion

Solution:
For Hydrogen like atom, 1Î»'=Râ¡Zâ¡21n12-1n22 ...(i)
For Hydrogen atom, 1Î»=Râ¡1n12-1n22 ...(ii)
Dividing Eqn (ii) by Eqn (i), we get
Î»'Î»=Râ¡1n12-1n22RZ21n12-1n22
or Î»'Î»=1Zâ¡2
According to problem, Î»'=Î»4

â´ Î»'4Î»'=1Zâ¡2
â´âââââââZ=2
The atomic number of Helium atom is 2 . Hence, the required element is Helium.

Topic: Physics, Atomic Physics, JEE Main
Which among the following has highest boiling point?

Options:
A CH3CH2CH2CH3
B CH3CH2CH2CH2-OH
C CH3CH2CH2CHO
D H5C2-O-C2H5

The correct answer is:
CH3CH2CH2CH2-OH

Solution:
The boiling points of aldehydes and ketones are higher than hydrocarbons and ethers of comparable molecular masses. It is due to weak molecular association in aldehydes and ketones arising out of the dipole-dipole interactions. Also, their boiling points are lower than those of alcohols of similar molecular masses due to absence of intermolecular hydrogen bonding.

Topic: Chemistry, General Organic Chemistry, JEE Main, JEE Main 2024 (01 Feb Shift 2)
Which, among the following, is a correct statement?

Options:
A binding energy of a nucleus is always negative
B binding energy of a nucleus may be positive
C higher value of binding energy per nucleon means the nucleus is more ununstable
D higher value of binding energy per nucleon means the nucleus is more stable

The correct answer is:
higher value of binding energy per nucleon means the nucleus is more stable

Solution:
It has been observed that total mass of nucleus is always less than the sum of the masses of its nucleons. The energy difference between the nucleus and its constituent particles due to their mass difference is termed as the binding energy of the nucleus.
In other words, we can say that to break the nucleus into its constituent particles, some energy is needed to be supplied. This energy is termed as binding energy of the nucleus. More is the binding energy per nucleon, more is the energy required to break the nucleus and hence we can say the more stable the nucleus is.

Topic: Physics, Nuclear Physics, JEE Main
Which among the following is a rootless plant?

Options:
A Nymphaea
B Sagittaria
C Ceratophyllum
D Vallisneria

The correct answer is:
Ceratophyllum

Solution:
All the given options are hydrophytes in nature which grow in extremely wet or watery conditions. But among them only in Ceratophyllum roots are completely absent even in embryonic stage. They remain under water completely. Nymphaea is a rooted hydrophyte with floating leaves, Vallisneria is rooted submerged hydrophyte and Sagittaria is rooted emergent hydrophyte.

Topic: Biology, Plant Kingdom, AIIMS, AIIMS 2007
Which among the following is an example of sorption?

Options:
A Oxygen gas is passed over finely divide nickel
B Charcoal is added to methylene blue solution
C Chalk is dipped in ink
D Hydrogen gas is passed over platinum

The correct answer is:
Chalk is dipped in ink

Solution:
Colour pigment remains on the surface whereas solvent goes inside the bulk.

Topic: Chemistry, Surface Chemistry, MHT CET, MHT CET 2022 (06 Aug Shift 2)
Which among the following is classified as a condensation polymer?

Options:
A Dacron
B Neoprene
C Teflon
D Acrylonitrile

The correct answer is:
Dacron

Solution:
Dacron is made by the removal of H2O from the constituents (phthalic acid) and ethylene diol.

Topic: Chemistry, Polymers, JEE Main, JEE Main 2014 (06 Apr)
Which among the following is incorrect statement?

Options:
A Electromeric effect dominates over inductive effect
B The electromeric effect is, temporary effect
C Hydrogen ion \(\left(\mathrm{H}^{+}\right)\)shows negative electromeric effect
D The organic compound shows electromeric effect in the presence of the reagent only.

The correct answer is:
Hydrogen ion \(\left(\mathrm{H}^{+}\right)\)shows negative electromeric effect

Solution:
Hydrogen ion $\left(\mathrm{H}^{+}\right)$shows positive electromeric effect.

Topic: Chemistry, General Organic Chemistry, JEE Main, JEE Main 2024 (04 Apr Shift 1)
Which among the following is incorrect?

Options:
A In meld's experiment p2T remain constant. (p=loop, T=Tension)
B In Kundt's experiment distance between two heaps of powder is λ/2
C Quink's tube experiment is related with beats.
D Echo phenomena are related with reflection of sound.

The correct answer is:
Quink's tube experiment is related with beats.

Solution:
The explanation of the statements are given below
(i) In meled's experiment pT=constant.
⟹p2T=constant
Hence, this statement is correct.
(ii) In Kundt's experiment distance between two heaps of powder is λ2
Hence, this statement is correct
(iii) Quink's tube experiment is related to interference
hence the option is incorrect
(iv) Echo phenomena are related to the reflection of sound.
So, this statement is correct

Topic: Physics, Waves and Sound, NEET
Which among the following is not a carbonate ore? : -

Options:
A Pyrolusite
B Siderite
C Dolomite
D Magnesite

The correct answer is:
Pyrolusite

Solution:
Pyrolusite is MnO2

Topic: Chemistry, General Principles and Processes of Isolation of Metals, JEE Main
Which among the following is not a class of organic compound?

Options:
A Carbonyl compound
B Nitro compound
C Amides
D Electro compounds

The correct answer is:
Electro compounds

Solution:
Explanation: Classes of organic compounds are those which involves organic compounds such as carbon, hydrogen and oxygen. Hence, electro compounds is not a class of organic compounds.

Topic: Chemistry, General Organic Chemistry, JEE Main
Which among the following is not a polyester ?

Options:
A Glyptal
B PHBV
C Novolac
D Dacron

The correct answer is:
Novolac

Solution:
Polyester is any of a group of polymers that consist basically the repeated units of an ester. Polyester is a synthetic fabric that’s usually derived from petroleum. Dacron, PHBV and Glyptal are polyesters. Novolac is a linear condensation polymer of phenol and formaldehyde.

Topic: Chemistry, Polymers, JEE Main, JEE Main 2021 (31 Aug Shift 2)
Which among the following is not an aromatic compound (in specific)?

Options:
A Naphthalene
B Aniline
C Pyridine
D Tropolone

The correct answer is:
Pyridine

Solution:
Explanation: Pyridine is heterocyclic aromatic compound. Whereas naphthalene and aniline are benzenoid aromatic compounds and tropolone is a non-benzenoid aromatic compound.

Topic: Chemistry, General Organic Chemistry, JEE Main
Which among the following is not an example of Acyclic compound?

Options:
A Acetaldehyde
B Ethane
C Cyclopropane
D Isobutane

The correct answer is:
Cyclopropane

Solution:
Explanation: Cyclopropane is a ring (cyclic) compound and hence it does not come with the examples of open chain compounds.

Topic: Chemistry, General Organic Chemistry, JEE Main
Which among the following is the most reactive?

Options:
A ICl
B Cl2
C Br2
D I2

The correct answer is:
ICl

Solution:
I-Cl bond is polar due to electronegativity difference between I & Cl. Hence, it is more reactive than others.

Topic: Chemistry, p Block Elements (Group 15, 16, 17 & 18), JEE Main, JEE Main 2015 (04 Apr)
Which among the following is the most reactive?

Options:
A ICl
B Cl2
C Br2
D I2

The correct answer is:
ICl

Solution:
I-Cl bond is polar due to electronegativity difference between I & Cl,hence,more reactive.

Topic: Chemistry, p Block Elements (Group 15, 16, 17 & 18), JEE Main
Which among the following is the strongest acid?

Options:
A CH3CH2CH2CH3
B
C
D

The correct answer is:

Solution:

Topic: Chemistry, General Organic Chemistry, JEE Main, JEE Main 2021 (25 Jul Shift 2)
Which among the following is true?

Options:
A Plasma membrane helps in transportation of only water in and out of cell.
B Plasma membrane helps in protein synthesis.
C Plasma membrane helps in osmoregulation.
D Plasma membrane helps in nucleic acid synthesis.

The correct answer is:
Plasma membrane helps in osmoregulation.

Solution:
All cells are enclosed by a thin, film-like liable membrane called the plasma membrane or plasmalemma. The main function of the plasma membrane is to regulate the flow of materials into and out of the cell (osmoregulation). The membrane is selectively permeable.

Topic: Biology, Cell - The Unit of Life, NEET
Which among the following pairs has only herbicides?

Options:
A Aldrin and Dieldrin
B Sodium chlorate and Aldrin
C Sodium arsinate and Dieldrin
D Sodium chlorate and sodium arsenite.

The correct answer is:
Sodium chlorate and sodium arsenite.

Solution:
Herbicides, also commonly known as weedkillers, are chemical substances used to control unwanted plants. Selective herbicides control specific weed species, while leaving the desired crop relatively unharmed, while non-selective herbicides can be used to clear waste ground, industrial and construction sites, railways and railway embankments as they kill all plant material with which they come into contact.

Nowadays, the pesticide industry has shifted its attention to herbicides such as sodium chlorate NaClO3, sodium arsinite Na3AsO3 and many others.

Topic: Chemistry, Environmental Chemistry, JEE Main, JEE Main 2022 (29 Jul Shift 1)
Which among the following pairs of the structures will give different products on ozonolysis? (Consider the double bonds in the structures are rigid and not delocalized.)

Options:
A
B

C

D

The correct answer is:

Solution:
Ozone is a very reactive allotrope of oxygen. The reaction of ozone with alkenes and alkynes causes the oxidative cleaving of the alkene or alkyne. The carbon-carbon double bonds are replaced with carbon-oxygen double bonds, giving the required carbonyl product as shown below.

In all other options both compounds will give the same product on ozonolysis.

Topic: Chemistry, Hydrocarbons, JEE Main, JEE Main 2022 (29 Jul Shift 1)
Which among the following pairs of Vitamins is stored in our body relatively for longer duration?

Options:
A Thiamine and Vitamin A
B Vitamin A and D
C Thiamine and Ascorbic acid
D Ascorbic acid and Vitamin D

The correct answer is:
Vitamin A and D

Solution:
Vitamin-A and Vitamin-D.

Vitamins that are soluble in fat and oils but insoluble in water are fat-soluble vitamins, which are stored in our body relatively for a longer time.
e.g. Vitamin A and Vitamin D

Topic: Chemistry, Biomolecules, JEE Main, JEE Main 2021 (16 Mar Shift 1)
Which among the following purification methods is based on the principle of “Solubility” in two different solvents?

Options:
A Column Chromatography
B Sublimation
C Distillation
D Differential Extraction

The correct answer is:
Differential Extraction

Solution:
In chemistry, differential extraction is defined as a technique that is used to separate any organic compound that is present in an aqueous solution from the rest of the solution. The process of liquid-liquid extraction is the most commonly used in the chemistry laboratory, and it takes place in a separatory funnel.

The organic compound is later recovered by the process of distillation or evaporation. The process of continuous extraction is used in cases when the solubility of the compound is less in the organic solvent.

Topic: Chemistry, General Organic Chemistry, JEE Main, JEE Main 2024 (30 Jan Shift 2)
Which among the following reactions is can be an example of pseudo first order reaction?

Options:
A Inversion of cane sugar
B Decomposition of H 2 O 2
C Conversion of cyclopropane to propene
D Decomposition of N 2 O 5

The correct answer is:
Inversion of cane sugar

Solution:
C 12 H 22 O 11  +  H 2 O→ C 6 H 12 O 6 Glucose  +  C 6 H 12 O 6 Fructose
H2O in excess, a rate of reaction depends only on sucrose So Inversion of cane sugar is an example of pseudo-first order reaction.

Topic: Chemistry, Chemical Kinetics, JEE Main