JEE Main 2025 · April session

JEE Main 4 April 2025, Shift 2

75 questions: 15 numerical-answer and 60 multiple choice. 15 were rated hard and 18 easy. Its hard-question count was the highest of the 8 2025 shifts Lumi analysed. The biggest chapter was Conic Sections, with 5 questions.

Questions: 75; none dropped
Numerical answer: 15; 20% of the shift
Hard: 15; 20% of the shift
Chapters asked: 55; 11 questions with a figure

Key findings · 4 Apr 2025, Shift 2

1
15 hard questions (20%): the highest count of the 8 2025 shifts Lumi analysed. Across those shifts the hard share ran from 8% to 20%.
2
Maths was the hardest section, with 12 of 25 rated hard; Physics had the most easy questions (10 of 25).
3
13 questions tested a new idea, one no earlier year had asked: 21% of the 61 questions tagged to an idea.
4
29 came back from 2024: the same idea had been asked in the 2024 shifts Lumi analysed.
5
13 shared an idea with another 2025 shift (21% of tagged questions). Shifts in the same year can test the same idea in a new setting.
6
Biggest chapters: Current Electricity in Physics (2), Coordination Compounds in Chemistry (3) and Conic Sections in Maths (5).

The shift at a glance

Subjects, difficulty and chapters

Physics

25 Q · 5 numerical

Easy 10Medium 15Hard 0

Top chapters

Current Electricity2 Q
System of Particles and Rotational Motion2 Q
Units and Measurements2 Q
Wave Optics2 Q
Alternating Current1 Q
Atoms1 Q

Chemistry

25 Q · 5 numerical

Easy 8Medium 14Hard 3

Top chapters

Maths

25 Q · 5 numerical

Easy 0Medium 13Hard 12

Top chapters

Question format

Single correct43 Q
Numerical value15 Q
Diagram based6 Q
Two statements5 Q
Other4 Q
Match the list2 Q

What each question asks you to do

Multi-step34 Q
Calculation14 Q
Application11 Q
Conceptual8 Q
Recall5 Q
Data or graph3 Q

Most common: Multi-step.

Against the other 2025 shifts

This shift next to the 7 other 2025 shifts Lumi analysed

Shares are of each shift’s scored questions. The highlighted row is this shift.

Shift	Questions	Easy	Hard	Numerical	New ideas	Multi-step
2 Apr, Shift 1	75	21%	12%	20%	21%	44%
2 Apr, Shift 2	75	31%	8%	20%	22%	33%
3 Apr, Shift 1	74	28%	14%	20%	25%	38%
3 Apr, Shift 2	75	29%	8%	20%	31%	36%
4 Apr, Shift 2	75	24%	20%	20%	21%	45%
7 Apr, Shift 1	75	32%	12%	20%	18%	43%
7 Apr, Shift 2	75	24%	12%	20%	25%	45%
8 Apr, Shift 2	75	27%	17%	20%	20%	40%

New ideas: share of a shift’s questions testing an idea no earlier year had asked. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.

Drill down

What this shift asked, and its history

Every chapter this shift asked, with all its topics and ideas. Counts and squares cover every analysed shift from 2017 to 2026; rows this shift did not ask are faded, and each row lists this shift’s questions with the most recent from other shifts.

subjectAskedShareYears’17’20’21’22’23’24’25’26

Open25 this shift3092 · 33%33%8/830299720720358540200225
Open25 this shift3084 · 33%33%8/830298716720359538199224
Open25 this shift3065 · 33%33%8/829299715710354533200225

Squares are the 8 years with analysed shifts, 2017 to 2026. A number is the questions that year when there is more than one; the shade is scaled to one shift, so a year with more analysed shifts (1 to 24 a year) does not look darker. Share is of the level above.

Every question

All 75 questions of this shift

The opening words of each question, with its chapter, topic, idea and how hard it was. Open one for the full text, options and the official answer. “New idea” means no earlier year had tested it.

Subject

Difficulty

Idea

Find

75 of 75 questions

Physics25 questions

10 easy15 medium0 hard

Chemistry25 questions

8 easy14 medium3 hard

Q51
Consider the ground state of chromium atom $(Z=24)$ . How many electrons are with Azimuthal quantum number $l=1$ and $l=2$ respectively ?
Structure of Atom Quantum Numbers Anomalous Electron Configurations
EasySingle correctIdea asked in 4 yearsAsked the year before
Q52
Consider the given data : (a) $\mathrm{HCl(g)+10\ H_2O(l)\rightarrow HCl.10\ H_2O}$ $\Delta H=-69.01$ kJ mol $^{-1}$ (b) $\mathrm{HCl(g)+40\ H_2O(l)\rightarrow HCl.40\ H_2O}$ $\Delta H=-72.79$ kJ mol $^{-1}$ Choose the correct statement :
Thermodynamics (Chemistry)Enthalpy and Hess's Law Enthalpy of Dilution
MediumSingle correctNew idea
Q53
Given below are two statements : Statement (I) : Molal depression constant $K_f$ is given by $\frac{M_1RT_f}{\Delta S_{fus}}$ , where symbols have their usual meaning. Statement (II) : $K_f$ for benzene is less than the $K_f$ for water. In the light of the…
Solutions Colligative Properties Thermodynamic Calculation of Cryoscopic Constant
MediumTwo statementsNew idea
Q54
Half life of zero order reaction $\mathrm{A\rightarrow product}$ is 1 hour, when initial concentration of reactant is $2.0\ \mathrm{mol\ L^{-1}}$ . The time required to decrease concentration of A from 0.50 to $0.25\ \mathrm{mol\ L^{-1}}$ is :
Chemical Kinetics Integrated Rate Equations Zero Order Integrated Rate Law
EasySingle correctIdea asked in 2 yearsAsked the year before
Q55
Consider the following plots of log of rate constant k (log k) vs $\frac{1}{T}$ for three different reactions. The correct order of activation energies of these reactions is :
Chemical Kinetics Arrhenius Equation Log Base 10 Arrhenius Plot Slope
EasyDiagram based · figureIdea asked in 4 years
Q56
Given below are two statements : Statement (I) : For $\mathrm{ClF_3}$ (with lone pairs on Cl), all three possible structures may be drawn as follows. [figure: three trigonal-bipyramidal structures I, II, III of ClF3 with Cl at centre, three F atoms and two…
Chemical Bonding and Molecular Structure VSEPR Theory Trigonal Bipyramidal Positions
MediumTwo statements · figureIdea asked in 5 yearsAsked the year before
Q57
The elements of Group 13 with highest and lowest first ionisation enthalpies are respectively :
Classification of Elements and Periodicity in Properties Group 13 & 14 Group 13 Ionization Energy Trend
EasySingle correctIdea asked in 3 yearsAsked the year before
Q58
Given below are two statements : Statement (I) : The first ionisation enthalpy of group 14 elements is higher than the corresponding elements of group 13. Statement (II) : Melting points and boiling points of group 13 elements are in general much higher than…
The p-Block Elements Group 13 & 14 Group 13 Ionization Energy Trend
MediumTwo statementsIdea asked in 3 yearsAsked the year before
Q59
'X' is the number of electrons in $\mathrm{t_{2g}}$ orbitals of the most stable complex ion among $\mathrm{[Fe(NH_3)_6]^{3+}}$ , $\mathrm{[FeCl_6]^{3-}}$ , $\mathrm{[Fe(C_2O_4)_3]^{3-}}$ and $\mathrm{[Fe(H_2O)_6]^{3+}}$ . The nature of oxide of vanadium of the…
Coordination Compounds d-Block Elements Acid-Base Character of Oxides
MediumSingle correctIdea asked in 4 yearsAsked the year before
Q60
The correct order of $\mathrm{[FeF_6]^{3-}}$ , $\mathrm{[CoF_6]^{3-}}$ , $\mathrm{[Ni(CO)_4]}$ and $\mathrm{[Ni(CN)_4]^{2-}}$ complex species based on the number of unpaired electrons present is :
Coordination Compounds Crystal Field Theory High and Low Spin States
MediumSingle correctIdea asked in 7 yearsAsked the year before
Q61
The incorrect relationship in the following pairs in relation to ionisation enthalpies is :
The d- and f-Block Elements d-Block Elements Ionization Enthalpy Irregularities
MediumSingle correctIdea asked in 3 yearsAsked the year before
Q62
Match List - I with List - II. List - I (Separation of) List - II (Separation Technique) (A) Aniline from aniline-water mixture (I) Simple distillation (B) Glycerol from spent-lye in soap industry (II) Fractional distillation (C) Different fractions of crude…
Organic Chemistry: Some Basic Principles and Techniques
MediumMatch the list
Q63
In which pairs, the first ion is more stable than the second ? (A) [figure: 1-methoxycyclohexyl cation] & [figure: 1-methylcyclohexyl cation] (B) [figure: cyclohexyl carbanion (negative charge on the ring carbon) bearing an ortho-nitrophenyl group] &…
Organic Chemistry: Some Basic Principles and Techniques Inductive and Electromeric Effects Carbocation Stability
MediumOther · figureIdea asked in 4 yearsAsked the year before
Q64
The IUPAC name of the following compound is : $\mathrm{HC\equiv C-CH_2-CH(OH)-CH_2-CH=CH_2}$
Organic Chemistry: Some Basic Principles and Techniques IUPAC Nomenclature Alkene vs Alkyne Numbering Tiebreaker
MediumSingle correctIdea asked in 2 years
Q65
Consider the following molecule (X). The structure of X is [figure: tricyclic fused polycyclic hydrocarbon (X) containing a cyclopentene ring with a C=C, a six-membered ring with a C=C, and a lower five-membered ring with an exocyclic-type C=C at the ring…
Haloalkanes and Haloarenes Alkenes and Alkynes Markovnikov's Rule Application
HardDiagram based · figureIdea asked in 6 yearsAsked the year before
Q66
Given below are two statements : Statement (I) : Alcohols are formed when alkyl chlorides are treated with aqueous potassium hydroxide by elimination reaction. Statement (II) : In alcoholic potassium hydroxide, alkyl chlorides form alkenes by abstracting the…
Haloalkanes and Haloarenes
EasyTwo statements
Q67
Which among the following compounds give yellow solid when reacted with NaOI/NaOH ? (A) $\mathrm{CH_3-CH(OH)-C_2H_5}$ (B) $\mathrm{CH_3-CH_2-CH_2-OH}$ (C) $\mathrm{CH_3-C(=O)-C_2H_5}$ (D) $\mathrm{CH_3-C(=O)-OH}$ (E) $\mathrm{CH_3-CH_2-C(=O)-H}$ Choose the…
Aldehydes, Ketones and Carboxylic Acids Alcohols and Phenols Iodoform Test for Specific Alcohols
EasyOtherIdea asked in 4 yearsAsked the year before
Q68
A toxic compound "A" when reacted with NaCN in aqueous acidic medium yields an edible cooking component and food preservative "B". "B" is converted to "C" by diborane and can be used as an additive to petrol to reduce emission. "C" upon reaction with oleum…
Alcohols, Phenols and Ethers Ethers Temperature Dependence in Alcohol Dehydration
HardSingle correctNew idea
Q69
The correct order of basicity for the following molecules is : [figure: (P) N-methylpiperidin-2-one; (Q) N-methyl-5,6-dihydropyridin-2(1H)-one with a ring C=C; (R) bridged bicyclic lactam (N at bridgehead, C=O adjacent)]
Amines Basicity of Amides vs Amines
HardDiagram based · figureIdea asked in 2 years
Q70
A dipeptide, "x" on complete hydrolysis gives "y" and "z". "y" on treatment with aq. $\mathrm{HNO_2}$ produces lactic acid. On the other hand "z" on heating gives the following cyclic molecule. [figure: six-membered ring with two C=O and two N-H…
Biomolecules
MediumSingle correct · figure
Q71
x mg of $\mathrm{Mg(OH)_2}$ (molar mass = 58) is required to be dissolved in 1.0 L of water to produce a pH of 10.0 at 298 K. The value of x is __________ mg. (Nearest integer) (Given : $\mathrm{Mg(OH)_2}$ is assumed to dissociate completely in…
Equilibrium pH and Buffers pH of Strong Acids and Bases
EasyNumerical valueIdea asked in 4 years
Q72
The molar conductance of an infinitely dilute solution of ammonium chloride was found to be $185\ \mathrm{S\,cm^2\,mol^{-1}}$ and the ionic conductance of hydroxyl and chloride ions are 170 and $70\ \mathrm{S\,cm^2\,mol^{-1}}$ , respectively. If molar…
Electrochemistry
MediumNumerical value
Q73
Sea water, which can be considered as a 6 molar (6 M) solution of NaCl, has a density of $2\ \mathrm{g\,mL^{-1}}$ . The concentration of dissolved oxygen $(\mathrm{O_2})$ in sea water is 5.8 ppm. Then the concentration of dissolved oxygen $(\mathrm{O_2})$ in…
Solutions Mole Concept PPM and Mass Percentage
MediumNumerical valueIdea asked in 5 yearsAsked the year before
Q74
The amount of calcium oxide produced on heating 150 kg limestone (75% pure) is __________ kg. (Nearest integer) Given : Molar mass (in $\mathrm{g\,mol^{-1}}$ ) of Ca-40, O-16, C-12
Some Basic Concepts of Chemistry Stoichiometry Percentage Purity Calculations
EasyNumerical valueNew idea
Q75
A metal complex with a formula $\mathrm{MCl_4\cdot3NH_3}$ is involved in $\mathrm{sp^3d^2}$ hybridisation. It upon reaction with excess of $\mathrm{AgNO_3}$ solution gives 'x' moles of AgCl. Consider 'x' is equal to the number of lone pairs of electron…
Coordination Compounds Coordination Isomerism Facial and Meridional Isomerism in MA3B3
MediumNumerical valueIdea asked in 3 years

Maths25 questions

0 easy13 medium12 hard

Questions from the official paper published by NTA, answers from the final key. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026; see the other 2025 shifts.