15 JEE Main 2026 Chemical Equilibrium previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2026 previous-year questions from the Chemical Equilibrium chapter of Chemistry. Each links to a full solution with a verified answer key. To see the whole chapter across all years, visit the Chemical Equilibrium chapter hub.
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 =…
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