question_answer 60)

    Rate law cannot be determined from balanced chemical equation if.......... (a) reverse reaction is involved (b) it is an elementary reaction (c) it is a sequence of elementary reactions (d) any of the reactants is in excess Rate law can be determined from balanced chemical equation if it is an elementary reaction.

Answer:

                  (a, c, d) Rate law can be determined from balanced chemical equation if it is an elementary reaction.