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Combustion Reactions

When methane ...

Question

When methane is burnt in an excess of air, the products of combustion are?

A

C

and

H_{2} O

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B

C O

and

H_{2} O

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C

C O_{2}

and

H_{2}

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D

C O_{2}

and

H_{2} O

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Solution

The correct option is A $C O_{2}$ and $H_{2} O$
In excess of air, methane undergoes complete combustion to give carbon dioxide and water.
$C H_{4} + 2 O_{2} \to C O_{2} + 2 H_{2} O$

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