Combustion of methane and ethane respectively are:

exothermic and endothermic

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endothermic and exothermic

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both endothermic

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both exothermic

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Solution

The correct option is B both exothermic
Combustion reactions of alkanes are always exothermic in nature.

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Combustion of methane and ethane respectively are:

The correct option is B both exothermicCombustion reactions of alkanes are always exothermic in nature.

The correct option is B both exothermic
Combustion reactions of alkanes are always exothermic in nature.