Question

There are two statements, one labelled as Assertion $ (A) $ and the other as Reason $ (R) $ . Examine both the statements carefully and mark the correct choice.
$ (A) $ At equilibrium, the mass of each of the reactants and products remains constant.
$ (R) $ At equilibrium, the rate of forward reaction is equal to the rate of backward reaction.

• A. Both $ (A) $ and $ (R) $ are correct and $ (R) $ is the correct explanation of $ (A) $
• B. Both $ (A) $ and $ (R) $ are correct but $ (R) $ is not the correct explanation of $ (A) $
• C. $ (A) $ is correct but $ (R) $ is wrong
• D. $ (A) $ is wrong but $ (R) $ is correct

Answer 1

Answer: (A)

At equilibrium the concentration of each of the reactants and products becomes constant, thus, the mass of the reactants and products remains constant as the rate of forward reaction is equal to the rate of backward reaction