Kerala Plus Two Onam Question Papers 2025 – Download Answer Key PDF (All Subjects)

Plus Two Onam Exam Question Paper 2025 Overview

The Kerala +2 Onam exam has started from August 18, 2025 and is going to conclude on 27th August. Students must check the important details of the +2 exam, which are given in the table below:

Plus Two Onam Exam Question Paper 2025: Download PDF

The Plus Two Onam Examination Question Paper 2025 will be available here for download once the examination is over for those subjects. Students can refer to the PDF to understand the question paper pattern and types of questions asked. This would assist students in knowing their performance as well as their groundwork for the future exam.

Kerala Plus Two First Term Mathematics Question Paper 2025

Some of the questions of Plus Two first terminal maths 2025 are given below. To download the complete question, click on the subject-wise PDF link which is given in the above table.

1.(i) Let $\mathrm{A}=\{1,2,3\}$. Then number of equivalence relations containing $(1,2)$ is
(A) 1
(B) 2
(C) 3
(D) 4
(ii) Let $f: \mathbb{R} \rightarrow \mathbb{R}$ and $g: \mathbb{R} \rightarrow \mathbb{R}$ defined by $f(x)=\cos x$ and $g(x)=2 x^3$ Show that fog $\neq$ gof
2. (i) If $A$ and $B$ are symmetric matrices, then $A B-B A$ is $\qquad$ matrix
(ii) Find $X$, if $Y=\left[\begin{array}{ll}3 & 2 \\ 1 & 4\end{array}\right]$ and $2 X+Y=\left[\begin{array}{cc}1 & 0 \\ -3 & 2\end{array}\right]$
3. (i) A system of linear equations is said to be $\qquad$ if it has solution.
(ii) Find values of x if $\left|\begin{array}{ll}2 & 4 \\ 5 & 1\end{array}\right|=\left|\begin{array}{cc}2 x & 4 \\ 6 & x\end{array}\right|$
4. Check whether the relation $R$ defined in the set $\{1,2,3,4,5,6\}$ as $\mathrm{R}=\{(\mathrm{a}, \mathrm{b}): \mathrm{b}=\mathrm{a}+1\}$ is reflexive, symmetric or transitive.
5. Write the function in the simplest form : $\tan ^{-1}\left(\frac{x}{\sqrt{a^2-x^2}}\right),|x|<a$

Plus Two Onam First Terminal Biology Question Paper 2025

1. Seed formation without fertilization is called………………..

2. Observe the relationship between the first pair and fill in the blanks.

a. Origin of replication:- Responsible for initiating replication

-----------------------: - Codes for the proteins involved in the replication of the plasmid

b. Restriction enzymes : Used to cut DNA molecules

.................................:-Used for joining two DNA strands

3. Pollengrains are well preserved as fossils because of the presence of …………….

(a) Sporopollenin (b) Cellulose (c) Chitin (d) Pectin

4. Name two disarmed pathogen vectors used in biotechnology

5. Who constructed the first rDNA?

Plus Two Physics Onam Exam Question Paper 2025

Students can check the +2 Physics Onam Question Paper 2025, which is given below. To download the complete Plus Two First Terminal Question Paper 2025, click on the link given in the above table.

1．Which physical quantity has SI unit $\mathrm{Vm}^{-1}$

2． The electric field inside a conductor is always zero in electrostatic equilibrium．（True／False）
3．Plot a graph which shows the variation of electric potential of a charge with distance from it.
4．Which among the following is a polar molecule?
a）$ \mathrm{CO}_2$
b） HCl
c） $\mathrm{N}_2$
d） $\mathrm{O}_2$
5．Write vector form of Ohm＇s law．
6．Kirchhoff＇s voltage rule is based on law of conservation of （charge／energy／mass）

Plus Two Onam Exam Answer Key with Solution 2025: Download PDF

The Plus Two Onam Exam Answer Key, along with Solutions for the year 2025, will be provided here for download on this page after the examination. Students can download the solutions with the answer key, check their answers and calculate their expected marks.

Plus Two Onam First Terminal Maths Answer Key and Solution 2025

Some of the solutions, along with the answer key for Plus Two Onam First Terminal Maths Question Paper, are given below. Complete answer key with Onam Math Question Paper Solution will be given shortly.

Q1.
(i) $B(2)$
(ii) $f \circ g(x)=\cos \left(2 x^3\right), g \circ f(x)=2 \cos ^3 x$. Take $x=0: 1 \neq 2 \Rightarrow f \circ g \neq g \circ f$.

Q2.
(i) Skew-symmetric (since $(A B-B A)^T=-(A B-B A)$ ).
(ii) $X=\left[\begin{array}{ll}-1 & -1 \\ -2 & -1\end{array}\right]$.

Q3.
(i) Consistent.
(ii) $-18=2 x^2-24 \Rightarrow x^2=3 \Rightarrow x= \pm \sqrt{3}$.

Q4.
On $\{1,2,3,4,5,6\}$ with $R=\{(a, b): b=a+1\}$ : not reflexive, not symmetric, not transitive.
Q5.
$\tan ^{-1}\left(\frac{x}{\sqrt{a^2-x^2}}\right)=\sin ^{-1}\left(\frac{x}{a}\right)$ for $|x|<a$ (principal values).

Plus Two Onam First Terminal Biology Answer Key and Solution 2025

Plus two first term exam question paper answer key is given below, the complete answer with solution will be provided in PDF shortly.

Q1. Seed formation without fertilization is called Apomixis.

Q2.
a. Antibiotic resistance gene – Codes for the proteins involved in the replication/selection of the plasmid.
b. Restriction enzymes : Used to cut DNA molecules
DNA ligase : Used for joining two DNA strands

Q3. Correct option: (a) Sporopollenin

Q4. Two disarmed pathogen vectors used in biotechnology are:

• Agrobacterium tumefaciens (Ti plasmid)

• Retrovirus

Q5. The first recombinant DNA was constructed by Stanley N. Cohen and Herbert W. Boyer (1973).

Plus Two Onam First Terminal Physics Answer Key 2025

1. The SI unit $\mathrm{Vm}^{-1}$ corresponds to Electric Field.

2. In electrostatic equilibrium, the electric field inside a conductor is zero because charges rearrange themselves on the surface, ensuring that there is no net electric field inside the conductor.

4. HCl.
HCl is a polar molecule because it has a permanent dipole moment due to the difference in electronegativity between hydrogen and chlorine.

5. The vector form of Ohm's law is:
$\mathbf{J} = \sigma \mathbf{E}$

Complete Plus Two Onam Physics Answer Key 2025 is given below. click on the given link to download PDF.

Plus Two Onam Exam Paper Analysis 2025

The plus two first term exam question paper 2025 analysis for subjects maths and biology is available below. For other subjects, analysis will be given post the examination. The in-depth analysis will break down the entire question paper concerning key topics, levels of difficulty, and some important patterns observed in the current exam.

Analysis of Plus Two First Term Exam Question Paper 2025 Mathematics

• Overall difficulty of Plus Two Onam First Terminal Maths Question Paper was average to moderately high, with some easy basic and tough calculus/proof questions.
• The questions, of which there were a lot, were mainly distributed across Algebra (matrices, determinants, functions) and Calculus (differentiation, inverse trig).
• There were questions based on concept checking, computational algebra, calculus application, as well as proof/identity questions.
• Short 3-mark questions were easy scoring, inverse trig and continuity and matrix algebra were relatively trickier.

Analysis of Plus Two First Term Exam Question Paper 2025 Biology

• The Plus Two First Terminal (Onam) Exam Question Paper 2025 biology was generally moderate in terms of difficulty and balanced in terms of factual recall and application questions.
• Reproductive biology dealt mainly with flowering plants, ie, embryo sac, pollination, types of seeds, double fertilisation, and biotechnology or rDNA technology tools, selectable markers, and gel electrophoresis.
• The distribution of the plus two first term exam question paper of biology
  included 3-mark, 2-mark and 1-mark questions, which ensured very short concept checks as well as some slightly longer explanations.
• The 1-mark factual questions were the easiest areas of the paper, and the more complex areas were proof/explanation-based biotechnology tools, inheritance patterns, and the application of ART techniques.

Analysis of Plus Two First Term Exam Physics Question Paper 2025

The plus two Onam Physics question paper 2025 was moderately difficult with a balance between recall questions and application-based questions. Therefore, it was able to evaluate many aspects of conceptual understanding and problem-solving capabilities across a wide array of topics in the syllabus.

• 1-mark questions were the easiest, mainly focusing on basic elemental active recall of laws, definitions, and constructs.
• 2-marks questions would boil down to a short explanation or derivation, where one needs to explain electric field lines or at least has to solve some trivial problems on capacitance.
• 3-marks questions would base on application-not problems because they require students to solve long and serious problems that are, with regard to calculations, advanced ones related to electric fields or optics.

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Kerala +2 Onam Exam Day Tips 2025

Some important exam day tips for the Plus Two First Terminal (Onam) Exam Question Paper are given below:

• In the examination hall, keep yourself calm and positive because maintaining confidence is crucial to effective performance.

• Reach the examination centre on time to avoid unnecessary last-minute rush or stress.

• Remember to carry the admit card along with an ID proof, and any others that you may need to be fully prepared.

• Spend a few minutes reading the instructions provided along with the questions in order to prevent any mistakes.

• Use your time wisely for each section, so you don’t spend too long on any single question. Make sure you leave some time for revision at the end.

Also Check-

• Plus Two Onam Exam Time Table

• Kerala Plus Two Syllabus