20 mL of a gaseous hydrocarbon was exploded with 120 mL of oxygen . A contraction of 60 mL was observed and a further contraction of 60 mL took place when KOH was added. What is the formula of the hydrocarbon?
A
`C_(3)H_(6)`
B
`C_(3)H_(8)`
C
`C_(2)H_(6)`
D
`C_(4)H_(10)`
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