Chemical Equilibrium MCQs — Class 11 Chemistry | Federal Board

Questions batch 1 · In progress

QUESTION 1Not attempted

A reaction in which the products can react to form reactants is called:

QUESTION 2Not attempted

In a reversible reaction at equilibrium, the rate of the forward reaction is:

QUESTION 3Not attempted

Which of the following is an example of a reversible reaction?

QUESTION 4Not attempted

The equilibrium constant K_c for the reaction N₂ + 3H₂ ⇌ 2NH₃ is:

QUESTION 5Not attempted

If the value of K_c is very large, the equilibrium mixture contains:

QUESTION 6Not attempted

The equilibrium constant for a reaction is 1.0 × 10^-3. This indicates that the reaction:

QUESTION 7Not attempted

In a system at equilibrium, adding a catalyst:

QUESTION 8Not attempted

According to Le Chatelier's principle, increasing the pressure on the equilibrium 2SO₂(g) + O₂(g) ⇌ 2SO₃(g) will shift the equilibrium:

QUESTION 9Not attempted

The equilibrium constant expression for the reaction CaCO₃(s) ⇌ CaO(s) + CO₂(g) is:

QUESTION 10Not attempted

For the reaction A₂ + B₂ ⇌ 2AB, the equilibrium concentrations are [A₂] = 0.399M, [B₂] = 1.197M, [AB] = 0.203M. The value of K_c is approximately: