One of the following is an exothermic reaction. This is:
(a) Electrolysis of water
(b) Conversion of limestone into quicklime
(c) Process of respiration
(d) Process of photosynthesis

Question

One of the following is an exothermic reaction. This is:
(a)	Electrolysis of water
(b)	Conversion of limestone into quicklime
(c)	Process of respiration
(d)	Process of photosynthesis

Accepted Answer

Option (c) is the answer. Respiration is an exothermic reaction as the heat energy is released which maintains our body temperature.

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