Given below are two statements:
Statement I: Chloroethane reacts with KCN to form propanenitrile as major product while AgCN forms ethyl isocyanide as major product.
Statement II: 
reactions of optically active halides are accompanied by racemisation.
In the light of the above statements, choose the most appropriate answer from the options given below:
Text Solution
Verified by ExpertsC
KCN (ionic) provides free 
that attacks via 
(propanenitrile); AgCN (covalent) delivers CN bound to Ag through C, so attack via 
(ethyl isocyanide). In 
, a planar carbocation forms, allowing attack from either side 
racemisation.
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