1.

Consider the reaction: CH_(3)-CH_(2)-CH_(2)-Br+NaCNtoCH_(3)CH_(2)CH_(2)-C-=N+NaBr The correct statement is :-

Answer»

The REACTION will be FASTEST in water
The reaction will be fastest in N,N-dimethylformamide (DMF)
Transition state of `S_(N)2` is tetrahedral and `sp^(3)` hybridized
If conc. Of alkyl bromide is tripled and conc. of `OVERSET(THETA)(CN)` is reduced to HALF rate of `S_(N)2` increased by 2 times

Answer :B


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