125 JEE Main Chemical Equilibrium PYQs (2002–2026) with verified answers and step-by-step solutions.
This page collects every JEE Main Chemical Equilibrium previous-year question from Chemistry, 2002–2026. Each links to a full solution with a verified answer key. Click any year above to narrow the list, or open a question to study its step-by-step working and then practice it on PrepSharp's CBT player.
For the following gas phase equilibrium reaction at constant temperature, NH₃(~g) 1 / 2 ~N₂(~g)+3 / 2 H₂(~g) if the tot…
For the following reaction at 50°C and at 2 atm pressure, 2N₂O₅(g) 2N₂O₄(g)+O₂(g) N₂O₅ is 50\% dissociated. The magnitu…
Consider the following gaseous equilibrium in a closed container of volume ' V ' at T(K). P₂(~g)+Q₂(~g) 2 PQ(g) 2 moles…
Consider the general reaction given below at 400 K x ~A(~g) y ~B(~g) The values of Kp and Kc are studied under the same…
Observe the following equilibrium in a 1 L flask. A(~g) B(~g) At T(K), the equilibrium concentrations of A and B are 0.…
In a closed flask at 600 K, one mole of X₂Y₄(g) attains equilibrium as given below : X₂Y₄(g) 2XY₂(g) At equilibrium, 75…
Dissociation of a gas A₂ takes place according to the following chemical reaction. At equilibrium, the total pressure i…
One mole each of He and A(g) are taken in a 10 L closed flask and heated to 400 K to establish the following equilibriu…
The reaction A(g) B(g) + C(g) was initiated with the amount 'a' of A(g). At equilibrium it is found that the amount of…
Consider the following reactions in which all the reactants and products are present in gaseous state 2xy x₂ + y₂ K₁ =…
Log in to unlock the full list, track what you've solved, and practice on the TCS iON-style CBT player. It's free.