During decomposition of an activated complex:

Energy is always released

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energy is always absorbed

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Energy does not chnage

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None of the above

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Solution

The correct option is B Energy is always released
The energy required to form an intermediate is called as activation energy and the complex formed is called as activated complex.
Some energy is released when the complex decomposes to form a product. The entire concentration of an activated complex does not convert into product, but some of the concentration can convert into reactant as well.

Hence, option $A$ is the correct answer.

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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

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