JEE Main Chemistry question

ChemistryEquilibriumJEE Main

On adding A to the reaction at equilibrium, AB(s)⇌A(g)+B(g), the new equilibrium concentration of A becomes double, equilibrium concentration of B would become:

Answer: (A)

Solution

Kc=[A][B] constant (solid excluded). Doubling [A] halves [B].

Question ID VK-136099