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Question
Which of the following is the correct order of reactivity towards nucleophilic substitution reaction?
Which of the following is the correct order of reactivity towards nucleophilic substitution reaction?
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Solution
The correct option is D Allyl chloride > Propylchloride > Vinyl chloride
For SN1 reactions, the formed allylic carbocation is the most stable among all.
The correct order of reactivity is allyl chloride > propyl chloride > vinyl chloride.
For SN2 reactions, alkyl halides are more reactive than vinyl chloride, chlorobenzene, and benzyl chloride.
Alkyl halides are more reactive due to the polarised R−X bond. Because of this polarisation, carbon becomes electron-deficient and alkyl halide becomes more reactive. Besides, the least hindrance at this carbon favors SN2 reaction.
Option D is correct.
For SN1 reactions, the formed allylic carbocation is the most stable among all.
The correct order of reactivity is allyl chloride > propyl chloride > vinyl chloride.
For SN2 reactions, alkyl halides are more reactive than vinyl chloride, chlorobenzene, and benzyl chloride.
Alkyl halides are more reactive due to the polarised R−X bond. Because of this polarisation, carbon becomes electron-deficient and alkyl halide becomes more reactive. Besides, the least hindrance at this carbon favors SN2 reaction.
For SN2 reactions, alkyl halides are more reactive than vinyl chloride, chlorobenzene, and benzyl chloride.
Alkyl halides are more reactive due to the polarised R−X bond. Because of this polarisation, carbon becomes electron-deficient and alkyl halide becomes more reactive. Besides, the least hindrance at this carbon favors SN2 reaction.
Option D is correct.
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