In which of the following reactions, the...

In which of the following reactions, the heat liberated is known as ''heat of combustion''.

A

`H_((aq))^(@) + OH_((aq))^(-) rarr H_(2) O_((l)) +` heat

B

C (graphite) `+ (1)/(2) O_(2(g)) rarr CO_((g)) +` heat

C

`CH_(4(g)) + 2O_(2(g)) rarr CO_(2(g)) + 2H_(2)O_((l)) +` heat

D

`H_(2)SO_(4(aq)) + H_(2)O_((l)) rarr H_(2)SO_(4(aq)) +` heat

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The correct Answer is:

C

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