Least hindered rotation about carbon-carbon bond is observed in [RPMT

1.	Least hindered rotation about carbon-carbon bond is observed in [RPMT 2000]
A.	Ethane
B.	Ethylene
C.	Ethyne
D.	Hexachloroethane
Answer» B. Ethylene

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Least hindered rotation about carbon-carbon bond is observed in [RPMT 2000]

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