Tertiary alkyl halides are practically inert | vedclass

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(D) $S_N2$ reactions involve the attack of a nucleophile from the backside of the carbon atom bonded to the leaving group.In tertiary alkyl halides,th

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Steric hindrance

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(D) $S_N2$ reactions involve the attack of a nucleophile from the backside of the carbon atom bonded to the leaving group.In tertiary alkyl halides,the central carbon atom is surrounded by three bulky alkyl groups.These bulky groups create significant steric hindrance,which prevents the nucleophile from approaching the electrophilic carbon center.Therefore,tertiary alkyl halides are practically inert to $S_N2$ substitution.

Tertiary alkyl halides are practically inert to substitution by $S_N2$ mechanism because of:

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