During decomposition of an activated complex

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energy is always released

energy is always absorbed

energy does not change

reactants may be formed

answer is A, D.

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Detailed Solution

The energy required to form an intermediate called activated complex , is known as activation energy (E_a). Some energy is released when the complex decomposes to form product.
The entire concentration of activated complex do not convert into product but some activated complex may give reactant also.

Hence, Options "A" & "D" are correct answers.

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