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Question

Alkanes react with an excess of air or oxygen to give :


A

Alkene

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B

Carbon dioxide gas

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C

Hydrogen gas

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D

Alkyne

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Solution

The correct option is B

Carbon dioxide gas


Alkanes react with an excess of air or oxygen to give water vapour, carbon dioxide gas, and energy.

Example:

2C2H6+7O24CO2+6H2O


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