A hydrocarbon contains 10.5 g of carbon per gram of hydrogen. 1  L of the vapour of the hydrocarbon at 127°C and

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Q 1107312288.     A hydrocarbon contains 10.5 g of carbon per gram of hydrogen. 1  L of the vapour of the hydrocarbon at 127°C and 1 atm pressure weighs 2.8 g. Find the molecular formula of the hydrocarbon.
JEE 1980
A

C_4H_8

B

C_5H_6

C

C_3H_6

D

C_7H_8

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