Question

During decomposition of an activated complex
(a)energy is always released
(b) energy is always absorbed
(c) energy does not change
(d) reactants may be formed

Answer 1

Answers: (a) and (d).

When the reactant molecules collide each other they lead to the formation of an activated complex. It has the highest energy among reactants, products, and activated complex. When it decomposes to give the product, energy is always released and the stability of product increases. Since the entire concentration of activated complex does not convert into products while some activated complex may give reactants also. Reactants may be formed if the reaction is reversible.