If $5 m l$ of methane is completely burnt the volume of oxygen required and the volume of ${C O}_{2}$ formed under the same conditions are

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$5 m l$ and $15 m l$

$5 m l$ and $10 m l$

$10 m l$ and $10 m l$

$10 m l$ and $5 m l$

answer is B.

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Detailed Solution

The reaction is as follows:

${C H}_{4} + 2 O_{2} \to {C O}_{2} + 2 H_{2} O$

One mole of methane requires 2 moles of oxygen to produce one mole of carbon dioxide.

$22.4 L$ of methane will require $44.8 L$ of oxygen to produce $22.4 L$ of carbon dioxide.

Therefore, $5 m l$ of methane will require $10 m l$ of oxygen to produce $5 m l$ of carbon dioxide.

Hence the correct option is (B).

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