General Organic ChemistryHard
Question
Which of the following will have least hindered rotation about carbon - carbon bond ?
Options
A.Ethane
B.Ethylene
C.Acetylene
D.Hexachloroethane
Solution
In (b) and (c) ,rotation through C - C bond is restricted due to C = C and C ≡ C bonds. In (a) and (c), C - C free rotation is possible but in (d), it is hind ered due to presence of six bulkir - Cl atoms at neighbouring C-atoms.
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