The organic chloro compound, which shows complete stereochemical inversion during a SNreaction, is

(a) CH3Cl 

(b) (C2H5)2CHCl

(c) (CH3)3CCl 

(d) (CH3)2CHCl

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1 Answers

(a) :- In SN2 reactions, the nucleophile attacks from back side resulting in the inversion of molecule. Also, as we move from 1° alkyl halide to 3° alkyl halide, the crowding increases and +I effect increases which makes the carbon bearing halogen less positively polarised and hence less readily attacked by the nucleophile.

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