a in CA) a two-wep proces bond is broken then a is inversion of two-step broken

Question

a in CA) a two-wep proces bond is broken then a is inversion of two-step broken threa C) a (D) a there (A) 1 2 3 of the nitrile 22, What is the (A) El mixture of Ro- and (SHsommers (B) isomer only (c) unequal mixture of R- and isomers (D) (s isomer only 23. Which of these structures best depicts the Bansition state for the reaction ofCH,l with CHOK in CH/OH? 14. Which the 25. Which (A) (D) 12. Which carbocation would not be laely (A) CHCHCHCHs (B) (D) CHyCHCH1 13. Which alcoholis dehydraled fastst in (A) (B) CH CHCH OH

Explanation / Answer

Answer:- C

A bimolecular nucleophilic substitution i.e Sn2 reaction is a single step reaction which proceed with inversion in configuration of substrate molecule.

It is a 1-step concerted process i.e attack of nucleophile and loss of leaving Group take place simultaneously. The nucleophilic attack takes place at 180° to substrate which results in inversion of configuration.

9. B

Allylic, benzylic and primary alkyl halides are ideal substrates for SN2 reactions.

Bridge head carbon don't undergo nucleophilic substitution either sn1 or Sn2

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