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Question

A hydrocarbon contains 86% carbon, 488ml of the hydrocarbon weight 1.68 g at STP. Then the hydrocarbon is an


A
Alkane
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B
Alkene
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C
Alkyne
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D
Arene
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Solution

The correct option is B Alkene
ElementAt. wtMoleRatioEmpiricalformulaC=86%127.11CHH=14%1142Belongs toalkene CnH2n

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