WBJEE 2025 Sample Questions
Solving the sample questions from the WBJEE previous year papers will help students practice well for the exam and examine the difficulty level of the past years. Every questions is provided with four options to choose from. Some of the model questions from the WBJEE previous year question papers are given below to help yoy know its type.
Q1- A circular coil is placed near a current-carrying conductor, both lying on the plane of the paper. The current is flowing through the conductor in such a way that the induced current in the loop is clockwise as shown in the figure. The current in the wire is,
(A) time-dependent and downward.
(B) steady and upward.
(C) time-dependent and upward.
(D) An alternating current.
Q2- Select the molecule in which all the atoms may lie on a single plane is
(A) 4-Nitrobenzaldehyde
(B) 4-Methoxybenzaldehyde
(C) 4-Methylnitrobenzene
(D) 4-Nitroacetophenone
Q3- A letter lock consists of three rings with 15 different letters. If N denotes the number of ways in which it is possible to make unsuccessful attempts to open the lock, then
(A) 482 divides N
(B) N is the product of two distinct prime numbers.
(C) N is the product of three distinct prime numbers.
(D) 16 divides N.
Q4- What is the edge length of the unit cell of a body-centred cubic crystal of an element whose
atomic radius is 75 pm?
(A) 170 pm
(B) 175 pm
(C) 178 pm
(D) 173.2 pm
Q5: A car moving with a speed of 54 km/hr is brought to rest in 5 seconds. What is the acceleration of the car?
A) -5 m/s²
B) -3 m/s²
C) -2 m/s²
D) -4 m/s²
Q6: A block of mass 2 kg is placed on a smooth inclined plane that makes an angle of 30° with the horizontal. Find the acceleration of the block.
A) 9.8 m/s²
B) 4.9 m/s²
C) 2.5 m/s²
D) 3.6 m/s²
Q7: If the roots of the quadratic equation x2−6x+k=0x^2 - 6x + k = 0x2−6x+k=0 are real and equal, find the value of kkk.
A) 4
B) 6
C) 8
D) 9
Q8: Find the derivative of f(x)= x2sin x .
A) x cos x + x2sin x
B) 2 x sinx−x2cosx
C) 2 x sin x + x2cosx
D) 2 x cos x + x2sinx
Q 9: What is the oxidation state of sulfur in H2SO4H_2SO_4H2SO4?
A) +4
B) +5
C) +6
D) -2
Q10. What is the IUPAC name of [Cu(NH3)4]SO4
A) Tetraamminecopper(II) sulfate
B) Diaminecopper sulfate
C) Tetraminecopper(I) sulfate
D) Tetraamminecopper(I) sulfate