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20ml of a mix...

Question

$20 m l$ of a mixture of $C_{2} H_{4}$ and $C_{2} H_{6}$ gases is burnt completely in excess of $O_{2}$ . The volume of $C O_{2}$ gas formed is:

A

20 m l

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B

40 m l

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C

80 m l

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D

30 m l

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Solution

The correct option is B $40 m l$
b' $C_{2} H_{4} + 3 O_{2} r i g h t a r r o w 2 C O_{2} + 2 H_{2} O$
$2 C_{2} H_{6} + 7 O_{2} \to 4 C O_{2} + 6 H_{2} O$
If 20 ml mixture of gives contains equal amount,then given volume of $C_{2} H_{4}$ is 10 ml and given volume of $C_{2} H_{6}$ is 10 mlAccording to reaction 10 ml $C_{2} H_{4}$ produes 20 ml of $C O_{2}$
and 10 ml of $C_{2} H_{6}$ produces 20 ml of $C O_{2}$
Thus, total amount of production of $C O_{2}$ is 40 ml.
'

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