One mole of a hydrocarbon contains 36g of carbon and its vapour density is 20….

One mole of a hydrocarbon contains 36g of carbon and its vapour density is 20….

One mole of a hydrocarbon contains 36g of carbon and its vapour density is 20….

A.
CH3C ≡ CH
B.
CH3CH = CH2
C.
CH3CH2C ≡ CH
D.
CH3CH2 CH3

Correct Answer: Option A
Explanation
2VD = Rmm VD = Vapour density; Rmm – Relative
2 * 20 = 40 Molecular mass
Mole of carbon = 36/12 = 3
Mole of H2 = 40 – 36 = 4
The compound contains 3 mole of carbon and 4 hydrogen

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