A) \[14\text{ }litre\]
B) \[4\text{ }litre\]
C) \[\text{8 }litre\]
D) \[\text{12 }litre\]
Correct Answer: A
Solution :
\[2{{C}_{6}}{{H}_{6}}+7{{O}_{2}}\xrightarrow{{}}4C{{O}_{2}}+6{{H}_{2}}O\] \[2\times 22.4\]litre ethane required to complete burning \[=156.8{{O}_{2}}\]. \[4litre=\frac{156.8}{2\times 22.4}\times 4=14litre\,\,{{O}_{2}}\]
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