JEE Mains 2025 January 22 Shift 1 Question Paper with Solutions Available

JEE Main 2025 January 22 Shift 1 Question Paper with Solution( Memory -Based)

The JEE Main 2025 Shift 1 question paper with solutions will be made available on this page following the exam. These resources will be extremely beneficial for candidates taking the exam in subsequent shifts, as they can refer to the question paper and solutions for practice and analysis.

Q. For $\left[\mathrm{NiCl}_4\right]^{-2}$ What is the charge on metal and shape of complex respectively?
(1) +2 , tetrahedral
(2) +2 , square planar
(3) +4 , tetrahedral
(4) +4, square planar

Q. Solid sphere of mass $M$, radius $R$ exerts force $F$ on a point mass. Now a concentric spherical mass $\frac{M}{7}$ is removed. What is new force?
(1) $\frac{F}{7}$
(2) $\frac{6}{7} F$
(3) $\frac{5 F}{7}$
(4) $\frac{3 F}{7}$

Q. Form a 5 letter word is to be made using any distinct 5 alphabets such that middle alphabet is $M$ and letter should be in increasing order.

Q. Electrolysis of which compound Give $\mathrm{H}_2 \mathrm{~S}_2 \mathrm{O}_3$
a) Electrolysis of Conc. $\mathrm{Na}_2 \mathrm{SO}_4$
b) Electrolysis of Dil. $\mathrm{Na}_2 \mathrm{SO}_4$
c) Électrolysis of Conc. $\mathrm{H}_2 \mathrm{SO}_4$
d) Electrolysis of Dil. $\mathrm{H}_2 \mathrm{SO}_4$

Q. Compare boiling point of given solutions
(i) $10-4 . \mathrm{NaCl}$
(i) $10^{-3} \mathrm{NaCl}$
(iii) $10^{-2} \mathrm{NaCl}$
(iv) $10^{-4}$ urea
(1) I $>$ II $>$ III $>$ N
(2) III $>$ II $>$ I $>$ N
(3) il $>$ I $>$ ili $>$ N
(4) III $>$ II $>$ II $>$ N

Q. Let the triangle PQR be the image of the triangle with vertices $(1,3),(3,1)(2,4)$ in the line $x+2 y=2$. if the centroid of $\triangle$ PQR is the point $(\alpha, \beta)$ then $15(\alpha-\beta)$ is equation

Q. Find the Radius of Curvature of the Common surface of two bubble $\left(R_1> R_2\right)$

a) $R=\frac{R_1 R_2}{R_1+R_2}$
b) $R=\frac{2 R_1 R_2}{R_1-R_2}$
c) $R=\frac{R_1 R_2}{R_1-R_2}$
d) $R=\frac{R_1 R_2}{R_1-R_2}$

Q. A Parallel plate capacitor of capacitance $40 \mu \mathrm{~F}$ is connected to a 100V power supply now the intermediate space between the plates is filled with a drelectric material of dielectric constant $\mathrm{k}=2$. due to the introductiuon dielectric the extra charge and the change in electrostatic energy in the capacitor respectively or

(a) 2 mc and 0.4 J
(b) 2 mc and 0.2 J
(c) 4 mc and 0.2 J
(d) 8 mc and 2.J

Q. Given $a_1, a_2, a_3 \ldots$ are in GP such that $a_1 a_5=28$ and $a_2+a_4=29$ find $a_6$ ?

Q. The correct order of electronegativity

1. F > Cl > Br > I

2. Cl > F > Br > I

3. F > Cl > I > Br

4. Br > F > I > Cl

Q. which of the following lanthanide ion as $7 e^{-}$ in the outer moss shell
a) $\mathrm{Eu}^ {+3}$
3) $G d^ {+3}$
c) $\mathrm{Eu}^{+2}$
d) $Gd^ {+2}$

JEE Main 2025 January 22 Shift 1 Question Paper analysis

This is a detailed analysis based on the responses we got from the students. Lets see in detail:

1. Mathematics: Mathematics was overall moderate. It was 40% easy, 40% moderate and 20% difficult as per the responses we got. So, we can say that it was manageable for those who have prepared for the exam well.

2. Physics: Physics was also on the moderate side. It has 50% easy, 33% moderate and 17% difficult questions as per our analysis. Most of the questions were easy to moderate. There are chances of having the same level of questions in the next question paper.

3. Chemistry: Chemistry was moderate to difficult as per the analysis. It was 37% easy, 33% moderate and 30% difficult. The next batch should be more prepared for the exam especially for chemistry and Maths.

JEE Main Previous Years Question Paper

Previous year question papers are always helpful in the preparation of JEE Main. You can refer to and practice previous year's question papers so that you can get more clarity on how the JEE Mains 2025 question paper can be. Check here:

JEE Main Previous Year Analysis

Here is a detailed analysis of the JEE Main previous year analysis:

JEE Main previous year analysis for Mathematics Section

1. Calculus:

   • Differentiation and Integration: Calculus continued to dominate the Mathematics section in 2024. Questions on differentiation (maxima and minima, tangents, rate of change) and integration (definite integrals, areas under curves) were commonly asked. In addition, application-based questions from topics like differential equations were seen.

   • Definite Integrals and Area under Curves: These topics were frequently tested, especially in Application of Integrals questions, where candidates had to find the area between curves.

2. Algebra:

   • Quadratic Equations: Quadratic equations with real and complex roots, discriminants, and their geometric interpretation were featured.

   • Progressions: Questions on Arithmetic Progressions (AP) and Geometric Progressions (GP), particularly related to sum formulas and properties, were commonly found.

   • Matrices and Determinants: Problems involving matrix operations, inverse of matrices, and determinants were regularly included.

3. Coordinate Geometry:

   • Circles, Ellipses, and Hyperbolas: These topics were tested with a mix of direct and application-based questions. Questions typically required the use of equations of conics and related geometrical properties (e.g., tangents, distance from point to conic).

   • Straight Lines and Parabolas: In addition to conics, questions based on the properties of parabolas and straight lines (e.g., slope, equation, distance between points) were present.

4. Vectors and 3D Geometry:

   • Topics like vectors, dot and cross products, and 3D geometry questions involving the equation of planes, lines, and distance from a point to a plane were asked in 2024.

JEE Mains analysis for Physics Section Previous year

1. Mechanics (35% contribution):

   • Laws of Motion: Questions on Newton’s Laws, friction, and motion on inclined planes were common in 2024.

   • Work and Energy: The work-energy theorem, conservation of energy, and problems involving kinetic and potential energy were regularly tested.

   • Rotational Motion: This section featured questions on torque, moment of inertia, angular momentum, and angular velocity. A few application-based problems were included in the exam.

2. Electromagnetism:

   • Electrostatics: Coulomb's Law, electric fields, and Gauss’s Law were featured. Problems related to capacitance, dielectrics, and potential energy were also tested.

   • Magnetic Effects of Current: Problems on magnetic fields due to currents, Ampere’s Law, and magnetic force on moving charges were present.

   • Electromagnetic Induction: Faraday’s Law and Lenz’s Law, along with self and mutual inductance, were regularly tested.

3. Modern Physics:

   • Questions on atomic structure, photoelectric effect, and nuclear physics were prominent in 2024. Problems focused on Bohr’s model of the atom, half-life, and nuclear decay.

   • The dual nature of matter and de Broglie’s hypothesis also appeared in a few questions.

4. Thermodynamics:

   • Laws of Thermodynamics, heat transfer, and the Carnot engine were the focus. Problems with entropy, internal energy, and specific heat were tested.

JEE previous year analysis for Chemistry Section

1. Organic Chemistry:

   • Reaction Mechanisms: Organic chemistry dominated the Chemistry section with a strong emphasis on reaction mechanisms. Topics like SN1/SN2 reactions, electrophilic and nucleophilic substitution reactions, and aromatic substitution were prevalent.

   • Hydrocarbons and Alcohols: These topics were tested through reactions, naming reactions, and properties of different functional groups.

   • Aromatic Compounds: Reactions and mechanisms involving benzene derivatives and their electrophilic substitution were commonly tested.

2. Physical Chemistry:

   • Electrochemistry: The section focused on Gibbs Free Energy and its applications were tested frequently, Nernst equation and all.

   • Chemical Kinetics: Questions on rate laws, order of reactions, and Arrhenius equations were common.

   • Equilibrium: Le Chatelier’s Principle, equilibrium constant (K), and questions on concentration and temperature effects on equilibrium were featured.

3. Inorganic Chemistry:

   • Chemical Bonding: Questions on hybridization, molecular orbital theory, and covalent/ionic bonds were frequently tested.

   • Coordination Compounds: Ligands, oxidation states, and stability of coordination complexes were regularly tested.

   • Periodic Trends: The properties of elements and their periodic variations, including ionization energy, electronegativity, and atomic radius, were covered.