First slide

Alkyl halides

Question

For the following compounds, the correct statement(s) with respect to nucleophilic substitution reactions is(are)

Difficult

A

I and III follow $S_{N} 1$ mechanism
B

Compound IV undergoes inversion of configuration
C

The order of reactivity for I,III and IV is: IV>I>III
D

I and II follow $S_{N} 2$ mechanism

Solution

Note that in examination condition or solvent is not given hence the extent/possibility increase.
(A) I & III follow $S_{N^{1}}$ mechanism ® correct
(B) compound IV undergoes inversion of configuration
(C) the order of reactivity for I, III & IV is IV > I > III ® correct
(D) I & II follow $S_{N^{2}}$ Mechanism is correct

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