The following alkyl halidesin the decrasing order of `SN^(2)` reactivity , is `1 (CH_(3))_(3) C Cl " " 2 CH_(3)Br` 4 `CH_(3)Cl " " 4 (CH_(3))_(2)CHCl`
The following alkyl halidesin the decrasing order of `SN^(2)` reactivity , is
`1 (CH_(3))_(3) C Cl " " 2 CH_(3)Br`
4 `CH_(3)Cl " " 4 (CH_(3))_(2)CHCl`
A. `1 gt 2 gt 3 gt 4`
B. `2 gt 3 gt 4 gt 1`
C. `3 gt 2 gt 4 gt 1`
D. `2 gt 3 gt 1 gt 4`
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Correct Answer - B
Primary alkayl halides aremoarereactive,but bromide is more reactive than chloride. Compoud 4 and 1 are secondary and tertiary alkyl halide respectively,but bucleophile attack on both hindered because of steric effect bt 2 and 3 methyl groups.
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