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JEE Main Session-2 Exam 2025 : 4 April Shift-1 Analysis, Review & Question Paper with Answer Key
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JEE Main 2025 April 4 Shift 1 exam is over now. JEE Main 2025 April 4 Shift 1 student feedback and analysis is updated here. Additionally, memory-based unofficial JEE Main 2025 answer key and question paper with solutions for the April 4 exam have also been uploaded.
Candidates can check the responses of JEE Main April 4, 2025 Shift 1 students, difficulty level of questions, paper analysis, memory-based question paper with answer key and solutions, etc.
Shift 2 will start at 03:00 PM and end at 06:00 PM. Candidates will have to show their JEE Main 2025 Session 2 admit card to enter the JEE Main 2025 exam centre for the shift 2 exam. Additionally, candidates will have to bring a government-issued photo identity card and a passport-sized photograph. Proper adherence to these entry requirements is necessary to attend the exam.
👉 JEE Main 2025 (4 April Shift-1 Physics) Question Paper and Answer Key (Available)
👉 JEE Main 2025 (4 April Shift-1 Chemistry) Question Paper and Answer Key (Available)
👉 JEE Main 2025 (4 April Shift-1 Mathematics) Question Paper and Answer Key (Available)
JEE Main Session 2 Memory Based Paper 2025
| Exam Dates | Physics | Chemistry | Maths |
| 2 April 2025 | Shift - 1 | Shift - 1 | Shift - 1 |
| Shift - 2 | Shift - 2 | Shift - 2 | |
| 3 April 2025 | Shift - 1 | Shift - 1 | Shift - 1 |
| Shift - 2 | Shift - 2 | Shift - 2 | |
| 4 April 2025 | Shift - 1 | Shift - 1 | Shift - 1 |
| Shift - 2 | Shift - 2 | Shift - 2 | |
| 7 April 2025 | Shift - 1 | Shift - 1 | Shift - 1 |
| Shift - 2 | Shift - 2 | Shift - 2 | |
| 8 April 2025 | Shift - 2 | Shift - 2 | Shift - 2 |
JEE Main 2025 April 4 Updates: Overall difficulty level of April 4 shift 1
| JEE Main 2025 April 4 Exam | Shift 1 Analysis |
| Overall paper difficulty | Moderate |
| Subject-wise difficulty level |
Maths - Tough and lengthy Physics - Moderate Chemistry - Easy to moderate |
| Topics with high weightage in Maths | Vector and 3D, Determinants and Matrices, Conic Section, Ellipse, Straight Lines, Integration, Area Under the Curve, Circle, Probability, Statistics, Inverse Trigonometric Function, Sequence and Series. |
| Topics with high weightage in Physics | Modern Physics, Semiconductors, Magnetic Effect of Current, Mechanics, Electrostatic, Dipole Movement and Torque, Fluid Mechanics, Ray Optics, Wave Optics, Units and Dimensions and Rotation |
| Topics with high weightage in Chemistry |
Physical chemistry had the most weightage; there were many questions from organic chemistry, and inorganic chemistry had less weightage. Topics with high weightage were - Chemical Bonding, Biomolecules, GOC, Thermodynamics, Equilibrium, Ionic, Coordination, CFT, Hydrocarbon. There were no out-of-syllabus questions. |
| Cutoff Expectation |
JEE Main 2025 Cutoff for JEE Advanced is expected to DROP, as per the experts. |
JEE Main April 4 Shift 1 Exam Analysis
The JEE Mains April 4 shift 1 is now over. Here's what candidates need to say about the paper level -
- The mathematics section was challenging. Questions were tricky, lengthy and confusing.
- Physics was moderate.
- Physical chemistry had more weightage, yet was easy.
- The paper difficulty level was similar to the Jan 28 exam (however, more difficult).
- Physical and Organic had more number of questions compared to inorganic chemistry.
Topics asked in JEE Main April 4 (Shift 1)
- Physics - modern physics, semiconductor, current electricity, magnetic field, mechanics, rotation, electrostatics, fluid mechanics, osmotic pressure, ray optics, wave optics,
- Mathematics - matrix, conic sections, integration, vectors, 3D, probability, ITF, trigonometry, sequence and series.
- Chemistry - Chemical bonding, biomolecules, GOC, thermodynamics, coordination compounds, CFT, electrochemistry, and chemical kinetics.
Maths
Physics
Chemistry
JEE Main 4 April 2025 Shift 1 Physics Question Paper with Answer Key
| Q.No. | Question | Answers |
| 1 | Find the dimension of E/B where, E represents electric field and B represents magnetic field | 2. LT -1 |
| 2 | A ring and a solid sphere released from rest from same height on enough rough inclined surface. Ratio of their speed when they reach at bottom is √(7/x) m/s then x is ____ | 10 |
| 3 | Mean free path for an ideal gas is to be observed 20 µm while average speed of molecules of gas is observed to be 600 m/s, then frequency of collision is near by | 3 x 10 7 |
| 4 | Find the equivalent capacitance between A and B, where C = µF | 3.  |
| 5 | 4 rods of equal length are joined as shown in the figure. Combined system is moving with speed 10 m/s in a perpendicular magnetic field of 1/√2 tesla. Find emf induced between point P and Q (I = 10 cm). | 1. 1 volt |
| 6 | A real object placed in front of a spherical mirror forms an image whose magnification is -1/3. If the distance between the image and object is 30 cm. The focal length of the mirror is ____ cm. | 1. -11.25 cm |
| 7 | The current in a AC circuit is given as i = 100√2sin(100π/t)A. Find rms current and frequency is Hertz | 4. 100A, 50 Hz |
| 8 | An electric dipole with charges 2 µC and a separation 20 cm is placed close to an infinitely charge non-conducting sheet with surface charge density 100 C/m 2 . Find the torque acting on the dipole makes an angle 30° with the normal to the sheet. | 4. 1/ε₀ x 10- 5 N - m |
| 9 | Assertion (A) : The minimum kinetic energy required to take a body of mass m from surface to earth to infinity is mgR. Reason (R) : Potential energy at surface of earth is zero. |
3. (A) is correct but (R) is incorrect |
| 10 | Longitudinal sound waves travel in three different gases namely helium, methane and carbon dioxide. Mean temperature of three gases are equal then ratio of speeds of wave in 3 gases respectively are | 3. √5:1:√(21/55) |
| 11 | Assertion (A) : In photoelectric effect, if intensity of monochromatic light is increased then stopping potential increases. Reason (R) : Increased intensity results in increment of photocurrent. |
3. A is incorrect and R is correct |
| 12 | A block of mass m kg is connected to two strings as shown. If T 1 = √3T 2 , then choose the correct option | 2. θ 1 = 60°, θ 2 = 30°, T 2 = mg/2 |
| 13 | A closed organ pipe having fundamental frequency ƒ o . Now 1/5 of volume its filled with water then % change in the fundamental frequency. | 3. -20% |
| 14 | In arrangement shown, has two non-conducting plane sheets with charge density σ, and a non-conducting sphere with volume charge density p. Choose the correct relation between the magnitude of electric fields at A, B, C, and D. Point A is at the middle of two sheets. |
2. E A > E B , E C ≠ E D |
| 15 | Two simple pendulums with amplitudes θ 1 and θ 2 have length of strings as I 1 and I 2 respectively. Choose the correct options if the maximum angular accelerations are same. | 2. θ 1 I 2 = θ 2 I 1 |
| 16 | In YDSE setup, distance between slits d = 0.2 mm. If d is changed to 0.4 mm, then % change in fringe width | 2. 50% |
| 17 |  |
1. S1 is correct and S2 is incorrect |
| 18 | A small mirror of mass m is suspended to a fix point with an ideal string of length I. A photon of energy E incident normally on the mirror. Find maximum angular deviation (θ) of the mirror. | 4. 2E/mc √ (gl) |
| 19 |  |
4.  |
| 20 | The figure shows two boxes with identical square cross-sections and heights h 1 and h 2 (h 1 = 2h 2 ) are made of different materials. An equal force is applied on the square cross-sections such that the deformations θ 1 and θ 2 are realized (θ 1 = 2θ 2 ). If shear modulus of box-1 is 4 × 10 9 N/m 2 and that of box-2 is x × 10 9 N/m 2 , then x is _____. | 8 |
JEE Main 4 April 2025 Shift 1 Chemistry Question Paper with Answer Key
| Q.No. | Question | Answers |
| 1 | In the following, the number of paramagnetic molecules are: O 2 , N 2 , F 2 , B 2 , Cl 2 |
2 |
| 2 |
Which of the following is the ratio of 5 th Bohr orbit (r 5 ) of He + & Li 2+ ? |
3/2 |
| 3 | Which of the following pair of ions have equal number of unpaired electrons? | Mn 3+ and Fe 2+ |
| 4 |
Incorrect order of atomic radius is: |
Al < Ga |
| 5 |
In the reaction sequence: |
 |
| 6 |
One mole of an ideal gas expands from 10dm 3 to 20dm 3 through isothermal reversible process. Find ΔU, q & w |
ΔU = 0, q ≠ 0, w ≠ 0 |
| 7 |
Observe the following diagram. |
Cellulose acetate |
| 8 |
|
 |
| 9 |
Which of the following is correct option regarding 1s orbital? |
It is symmetrical |
| 10 |
Total number of stereoisomers possible for complexes [Cr(Cl 3 )(Py) 3 ] and [CrCl 2 (C 2 O 4 ) 2 ] respectively are |
2, 3 |
| 11 |
In lead storage battery during charging oxidation state of lead show changes |
x 1 = +2, y 1 = 0 x 2 = +2, y 2 = +4 |
| 12 |
Which of the following compound is not a product of intramolecular aldol condensation reaction? |
 |
| 13 |
0.01 M HX (K a = 4 × 10 -10 ) is diluted till the solution has pH = 6. If the new concentration is x * 10 -4 M, then find x. |
25 |
| 14 |
Consider the reaction A+B → Product |
2 m-n |
| 15 |
The complex ion having crystal field stabilization energy is zero and value of spin only magnetic moment is 5.92 BM. |
[Mn(SCN) 6 ] 4- |
| 16 |
|
Statement-l is correct but Statement-ll is incorrect |
| 17 |
In following sequence of reaction. A is converted to D. |
A = CH 3 COCH 3 , B = CH 3 -CH(OH)CH 3 , C = CH 3 –CH(Br)CH 3 |
| 18 |
The activation energy of forward reaction and backward reaction is 100 kJ/mole and 180 kJ/mole respectively. Find the correct statement if catalyst is added under same condition of temperature. |
Catalyst does not change ΔG of reaction |
| 19 |
KMnO 4 oxidises others in acidic medium, Difference between two oxidation states of Mn is x. Neutral FeCl 3 reacts with oxalate to form a complex compound having y-d-electrons. Find x + y. |
10 |
| 20 |
In Duma's method for estimation of N, 0.5 g of an organic compound gave 150 mL of N 2 collected at 300 K and 900 mmHg pressure (Aq tension is 15 mm Hg). Find % of N. |
40 |
| 21 |
Given below is a sample of DNA strand |
33 |
| 22 |
A sample of 150 kg wheat contains Fe-metal. Find mass of FeSO 4 .7H 2 O in g. so that sample contains 12 ppm Fe-metal. (Atomic mass of Fe = 55.85 g/mol) |
9 |
JEE Main 4 April 2025 Shift 1 Mathematics Question Paper with Answer Key
| Q.No. | Question | Answers |
| 1 |  |
2 (tan-1 e- π/4) |
| 2 | If the equation of an ellipse E is x 2 /9 + y 2 /16 = 1 then the length of latus rectum of E is | 9/2 |
| 3 | The sum of the series 1+3+5 2 +7+9 2 + ... upto 80 terms is | 338160 |
| 4 | Let there be two A.P's with each having 2025 terms. Find the number of distinct terms in union of these two A.P.'s, second A.P. is 9, 16, 23, ... first A.P. is 1, 6, 11, ... and Second A.P. is 9, 16, 23.... | 3761 |
| 5 | Consider a committee of 12 members is formed randomly out of 4 Engineers, 2 Doctors and 10 Professors. Find the probability that the committee has exactly 3 Engineers and 1 Doctor. | 16 |
| 6 | The number of integral values of n ∈ N for which the equation x² + 4x - n = 0, η ∈ [20,100] have roots, is | 6 |
| 7 | Let 1x-51 ≤ 4√x. If the Area enclosed is A, then 3A equals to | 368 |
| 8 |  |
4/5 |
| 9 | Find the length of latus rectum of an ellipse if foci are (2, 5) and (2, -3) and the eccentricity of the ellipse is | 18/5 |
| 10 |  |
-6 |
| 11 | Let a and ẞ be the number of points where the function, f(x) = max(x, x³, x 5 , ..., x 21 } is not continuou differentiable respectively, then find a + B | 3 |
| 12 | If  , then the area bounded by the curve y = f(x) and coordinate axes is (in square units) |
1/2 |
| 13 |  |
 |
| 14 | There are 10 pens such that 3 pens are defective. Let X represent the number of defective pen selerted. If two pens are selected at random then variance of X is | 28/75 |
| 15 |  |
90 |
| 16 |  |
14 |
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