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Question

Respiration in humans is an example of ___________ reaction.


A

Exothermic

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B

Combination

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C

Endothermic

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D

Exothermic and combination

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Solution

The correct option is A

Exothermic


Respiration in humans is an example of exothermic reaction. The reaction in which heat is liberated is called an exothermic reaction.

The chemical equation of this reaction is, C6H12O6+6O26CO2(aq)+6H2O(aq)+ energy.

Energy is released in the process of respiration. A combination reaction is a reaction where two or more elements or compounds (reactants) combine to form a single compound (product), so we can see that respiration is not a combination reaction as more than one product is formed.


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