IIT JAM 2025 Question Paper with Solutions Available: Download PDF Here, Analysis

IIT JAM Question with Solutions 2025: The IIT JAM question papers are inevitable for the IIT JAM 2025 aspirants. With the exam concluded on 2nd of February 2025, the candidates should be awaiting their IIT JAM 2025 results. The IIT JAM question paper 2025 is likely to have a balanced mix of multiple-choice questions and numerical answer type questions across various subjects. . Solving the previous year’s IIT JAM Question Papers is highly beneficial for candidates to enhance their IIT JAM preparation. However, after the examination, analysing the various IIT JAM Question Papers of the 2025 examination is also necessary. The candidates are requested to go through the contents of this article on the IIT JAM to go through the various IIT JAM Question Papers 2025.

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This Story also Contains

1. IIT JAM Question Papers 2025: Important Highlights
2. IIT JAM Question Paper with Solutions 2025: Chemistry
3. IIT JAM Question Paper Pattern 2025
4. IIT JAM Question Paper 2025 Analysis: Physics
5. IIT JAM Question Paper 2025 Analysis: Mathematics
6. IIT JAM Question Paper 2025 Analysis: Economics
7. IIT JAM Question Paper 2025 Analysis: Mathematical Statistics
8. IIT JAM Mock Tests
9. IIT JAM 2025 Question Paper with Solutions

IIT JAM Question Papers 2025: Important Highlights

• This year, IIT Delhi is set to design the IIT JAM Question Paper for all the subjects.

• The IIT JAM examination is conducted for seven subjects, Physics, Chemistry, Biotechnology, Geology, Mathematics, Mathematical Statistics and Economics.

• There are no major changes in the examination pattern as compared to the IIT JAM 2024 examination.

• The candidates can appear for two IIT JAM Question Papers given that they pay the additional fee. However, this is the maximum number of attempts possible for the candidates.

• The IIT JAM Question Paper for all the subjects will be divided into three sections, A, B and C.

• The negative marking in the IIT JAM examination applies only to Section A. For each incorrect 1-mark question, 1/3 mark is deducted, and for each incorrect 2-mark question, 2/3 mark is deducted. Sections B and C, however, do not have any negative markings.

• The results will be declared tentatively on March 19 as per the latest notification released by IIT Delhi.

IIT JAM Question Paper with Solutions 2025: Chemistry

IIT JAM Chemistry memory based questions 2025 with solutions are mentioned below.

Q 1. Acidity order of aqua complexes having CN₆ of Al³⁺, Fe²⁺, and Fe³⁺?

Ans, The acidity of aqua Complexes depends on the charge density of $u$ Central metal ion. $\mathrm{Fe}^{3+}$ has highest charge density we to smallest ionic radius, making Complex most acidic.

$\mathrm{Fe}^{3 t}>\mathrm{Al}$ bt $>\mathrm{Fe}^{2 t}$ - acidic order.

Q 2. C₁₂O₁6 having frequency 3.8 has O₁₈. What is the new frequency?

Ans. $
\begin{aligned}
& v=\frac{1}{2 \pi} \sqrt{\frac{k}{\mu}} \text { or } \frac{v_2}{v_1}=\sqrt{\frac{\mu_1}{\mu_2}} \\
& \mu=\frac{m_1 m_2}{m_1+m_2}
\end{aligned}
$
For $c^{12}-0^{16}$

$
\mu=\frac{12 \times 16}{12+16}=\frac{192}{28}=6.85
$
For $C^{12}-0^{18} \quad A=\frac{12 \times 18}{12+18}=\frac{216}{30}=7.2$

$
\begin{aligned}
& \frac{v_2}{v_1}=\sqrt{\frac{6.0 .57}{7.2}} \\
& v_2=3.71
\end{aligned}
$

Q 3. A 1.84 g mixture of CaCO₃ reacts until weight loss. The residual weight is 0.96 g. What is the percentage composition of CaCO₃ in the mixture?

Ans. $\mathrm{CaCO}_3 \longrightarrow \mathrm{CaO}+\mathrm{CO}_2$

$\begin{aligned} n & =\frac{\text { Molar mass of } \mathrm{CaO}}{\text { Molar mass of } \mathrm{CaCO}_3} \\ & =\frac{56}{100}=0.56\end{aligned}$

$\begin{aligned} & \text { Amount of } \mathrm{CaCO}_3 \\ & \begin{aligned} \frac{\text { mass of }{ }^2 \mathrm{CO}}{n} & =\text { Amount } \\ \frac{0.96}{0.56} & =1.71 \mathrm{~g} \\ \% \text { of } \mathrm{CaCO}_3 & =\left(\frac{1.71}{1.84}\right) \times 100 \\ & =92.93 \%\end{aligned}\end{aligned}$

Q 4. If P₄O₁₀ is hydrolyzed and then heated above 300°C. What will be the product?

Ans. $\begin{aligned} & \text { Above } 300^{\circ} \mathrm{C} \text { give }\left(\mathrm{HPO}_3\right) \\ & \mathrm{P}_4 \mathrm{O}_1 \mathrm{O}+6 \mathrm{H}_2 \mathrm{O} \rightarrow 4 \mathrm{H}_3 \mathrm{PO}_4 \\ & 2 \mathrm{H}_3 \mathrm{PO}_4 \rightarrow \mathrm{H}_4 \mathrm{P}_2 \mathrm{O}_7+\mathrm{H}_2 \mathrm{O} \\ & \mathrm{H}_4 \mathrm{P}_2 \mathrm{O} \rightarrow 2 \mathrm{HPO}_3+\mathrm{H}_2 \mathrm{O}\end{aligned}$

Q 5. Write the acidity order for [fe(NH3)6]+2,[fe(NH3)6]+3,[Al (NH3)6]+3

Ans. The acidity of Coordination Complexes depends on the charge density of Central metal ion. A higher charge density and 8 maller ionic radius increase the polarisation of the ligand $\left(\mathrm{NH}_3\right)$.

$
\mathrm{Al}^{3+}>\mathrm{Fe}^{3+}>\mathrm{Fe}^{2 t}-\text { acidic order }
$

Q 6. Electron is Accelerated through 10 KV Potential, Then De-broglie wave length (lamba) =?

Ans. $\begin{aligned}
\lambda & =\frac{h}{\sqrt{2 m e V}} \\
2 m_e V & =2 \times\left(9.1 \times 10^{-31}\right) \times\left(1.602 \times 10^{-19}\right) \\
& =2.92 \times 10^{-2} 3 \mathrm{~J} / \mathrm{kg} \\
\text { Ine } \sqrt{2 m_e V} & =\sqrt{2.92 \times 10^{-23}} \\
& =5.41 \times 10^{-12} \\
\lambda & =\frac{6.626 \times 10^{-34}}{5.41 \times 10^{-12}} \\
& =0.125 \mathrm{~nm}
\end{aligned}$

Q 7. No. of stereoisomers?

Ans. There are 3 optical centre

No. of Sterioisomer is $2^n=2^3=8$

IIT JAM Question Paper Pattern 2025

The given below is the IIT JAM question paper pattern for all the subjects as prescribed by the IIT JAM examination conducting authority, IIT Delhi.

IIT JAM Question Paper 2025 Analysis: Physics

• The IIT JAM Physics 2025 question paper had a moderate to difficult difficulty level and was lengthier than the previous year's exam, requiring better time management from candidates.
• The MCQ section was considered the toughest part of the exam, featuring more complex questions that tested deeper understanding and problem-solving skills.
• Two questions were asked from central forces and Kepler’s planetary motion, including one NAT question and one MSQ question, while other topics like moment of inertia, magnetic field, electromagnetic induction, and Maxwell’s Theorem were also covered, with one or two questions from each.
• Contrary to expectations, the paper included a greater number of questions from solid state physics and optics, making them more prominent in the exam.
• A few questions on electromagnetic theory focused on permittivity and polarization.
• The 2025 paper also featured questions on digital logic and diodes.
• All questions in Section C were formula-based, requiring candidates to apply theoretical knowledge and formulas to solve complex numerical problems.

IIT JAM Question Paper 2025 Analysis: Mathematics

• The IIT JAM 2025 Mathematics question paper followed a similar format to previous years. It was quite calculation-heavy, requiring candidates to do a lot of math work.
• According to initial feedback from both candidates and experts, the 2025 paper was a bit easier compared to the previous year. However, despite being easier, the paper was still lengthy and time-consuming.
• The paper included a question on relations and functions, specifically on set homomorphism. A notable change this year was that in the differential equations section, questions based on real analysis were asked. These questions weren’t just about solving equations; they required a deeper understanding of the concepts.
• Candidates found that the one-mark questions were the easiest in the paper.

IIT JAM Question Paper 2025 Analysis: Economics

IIT JAM Question Paper 2025 Analysis: Mathematical Statistics

Candidates who have taken the exam can check their safe attempts from this table below.

Also read,

IIT JAM Chemistry Question Paper with Solutions

IIT JAM Maths Question Paper with Solutions

IIT JAM Physics Question Paper with Solutions

IIT JAM Mock Tests

Candidates must participate in IIT JAM mock tests as part of their preparation. These mock tests play a crucial role in assessing one’s readiness and understanding the difficulty level of the exam. Below are links to the official IIT JAM mock tests, created by IIT Delhi, the exam’s conducting body. Candidates are strongly encouraged to practice these mock tests before appearing for the actual examination.

IIT JAM 2025 Question Paper with Solutions

The IIT JAM question paper 2025 for most of the subjects followed a similar pattern to previous years. You can download the IIT JAM question paper PDF using the link given below. This ebook contains various memory-based questions of the IIT JAM 2025 question paper for the reference of the candidates. We hope that this IIT JAM question paper with answers PDF will be useful for all the candidates.