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Chemistry - Halogen Derivative Question with Solution | TestHub

ChemistryHalogen DerivativeNUCLEOPHILIC SUBSTITUTION REACTIONS (SN1 AND SN2), SN(NEIGHBOURING GROUP PARTICIPATION), SNIEasy2 minPYQ_2020

ChemistryEasysingle choice

KI in acetone, undergoes $S_{N} 2$ reaction with each of P, Q, R and S. The rates of the reaction vary as

Options:

Answer:

Solution:

$S_{N} 2$ reactions are through back side attack of attacking $N u^{-}$ and not on the basis of stability of carbocation. Here less hindered site is more favourable for attack hence the correct order is

Stream:NTA_ABHYAS_NEETSubject:ChemistryTopic:Halogen DerivativeSubtopic:NUCLEOPHILIC SUBSTITUTION REACTIONS (SN1 AND SN2), SN(NEIGHBOURING GROUP PARTICIPATION), SNI

⏱ 2mℹ️ Source: PYQ_2020

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