JEE Main 2026 January 23 Question Paper with Solutions
Careers360 will provide you the questions below of the JEE Mains 23 Jan shift 1 question paper as the exam is concludes. Some questions from all three subjects will be added below.
Chemistry
Question 1: The correct order of ionisation energy of $\mathrm{Cl}, \mathrm{S}, \mathrm{P}, \mathrm{Al}, \mathrm{Si}$ is
$1 \quad\mathrm{Cl}>\mathrm{P}>\mathrm{S}>\mathrm{Si}>\mathrm{Al}$
$2 \quad\mathrm{P}>\mathrm{Cl}>\mathrm{S}>\mathrm{Al}>\mathrm{Si}$
$3 \quad\mathrm{Cl}>\mathrm{S}>\mathrm{P}>\mathrm{Si}>\mathrm{Al}$
$4 \quad \mathrm{Cl}>\mathrm{Al}>\mathrm{Si}>\mathrm{P}>\mathrm{S}$
Question 2: Given below are two statements
Statement-I : $\left[\mathrm{CoBr}_4\right]^{2-}$ absorbs lesser energy than $\left[\mathrm{CoCl}_4\right]^{2-}$
Statement-II : $\left[\mathrm{CoCl}_4\right]^{2-}$ has higher crystal field splitting energy then $\left[\mathrm{CoBr}_4\right]^{2-}$
1 Both S-I and S-II are correct
2 Both S-I and S-II are incorrect
3 S-I is correct, and S-II is incorrect
4 S-I is incorrect, and S-II is correct
Question 3: In the reaction sequence, what is the mass (in grams) of product (C) formed?
Question 4: Which of the following undergo nitration at fastest rate?
$1\quad \mathrm{C}_6 \mathrm{H}_5 \mathrm{NO}_2$
$2 \quad \mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_3$
$3 \quad \mathrm{C}_6 \mathrm{H}_5 \mathrm{COOH}$
$4 \quad \mathrm{C}_6 \mathrm{H}_5 \mathrm{Br}$
Maths
Question 5: A rectangle is formed by lines $x=0, y=0, x=3, y=4$. A line perpendicular to $3 x+4 y+6=0$ divides the rectangle into two equal parts, then the distance of the line from $\left(-1, \frac{3}{2}\right)$ is
$1\quad2$
$2 \quad \frac{17}{10}$
$3 \quad\frac{6}{5}$
$4 \quad\frac{8}{5}$
Question 6: Let $A=\{-2,-1,0,1,2,3,4\}$ and $R$ be a relation $R$, such that $R=\{(x, y):(2 x+y) \leq-2, x \in A, y \in A\}$.
Let I = number of elements in R
$m=$ minimum number of elements to be added in $R$ to make it reflexive.
n= minimum number of elem
be added in $R$ to make it symmetric, then $(1+m+n)$ is
1)10
2)17
3)11
4) 14
Question 7: Number of 4-letter words with or without meaning formed from the letters of the word PQRSSSTTUVV is
1) 1232
2) 1400
3) 1422
4) 1162
Physics
Question 8: There are two point charges, one at vertex and other at face as shown the cube. Find electric flux through the cube.
$1\quad3 q / \varepsilon_0$
$2\quad q / \varepsilon_0$
$3\quad3 q / 4 \varepsilon_0$
$4\quad5 q / \varepsilon_0$
Question 9: If a projectile is being projected with speed $v$ at angle $60^{\circ}$ with horizontal. Find the ratio of speed at the highest point ( $v_B$ ) to the speed at final point ( $v_C$ ).
1) 3:4
2) 1:3
3) 1: 2
4) 1:12
Question 10: For the given set of measurements, find the relative error.
$20.00,19.75,18.25,17.01$
1) 0.12
2) 0.06
3) 0.09
4) 0.17
