A) Ethane
B) Ethylene
C) Acetylene
D) Hexachloroethane
Correct Answer: A
Solution :
Free rotation around carbon-carbon bond takes place easily in alkanes. Now ethane and hexachloroethane both are alkanes. But in hexachloroethane bulky chlorine atom hinders the rotation. Therefore least hindered rotation takes place in ethane.You need to login to perform this action.
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