10 JEE Main 2025 Chemical Equilibrium previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2025 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 reaction, H₂(~g)+I₂(~g) 2 HI(~g) Attainment of equillibrium is predicted correctly by :
Consider the following equilibrium, CO(g)+2 H₂(g) CH₃ OH(g) 0.1 mol of CO along with a catalyst is present in a 2 dm³ f…
In the following system, PCl₅(~g) PCl₃(~g)+Cl₂(~g) at equilibrium, upon addition of xenon gas at constant T \& p, the c…
A vessel at 1000 K contains CO₂ with a pressure of 0.5 atm . Some of CO₂ is converted into CO on addition of graphite.…
Consider the equilibrium CO(~g)+3 H₂(~g) CH₄(~g)+H₂ O(~g) If the pressure applied over the system increases by two fold…
Given below are two statements Statement I : A catalyst cannot alter the equilibrium constant (Kc ) of the reaction, te…
At temperature T, compound AB₂₍~g₎ dissociates as AB₂₍~g₎ AB₍g₎+(1)/(2) ~B₂₍~g₎ having degree of dissociation x (small…
Consider the reaction X₂ Y(~g)=X₂(~g)+(1)/(2) Y₂(~g) The equation representing correct relationship between the degree…
Consider the following chemical equilibrium of the gas phase reaction at a constant temperature : A(~g) B(~g)+C(~g) If…
37.8 ~g ~N₂ O₅ was taken in a 1 L reaction vessel and allowed to undergo the following reaction at 500 K 2 ~N₂ O₅₍~g₎ 2…