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  • Which of the following statements are correct about the reaction intermediate? (a) Intermediate (iii) is unstable because this carbon is attached to 5 atoms.

Which of the following statements are correct about the reaction intermediate?

(i) Intermediate (c) is unstable because in this carbon is attached to 5 atoms.
(ii) Intermediate (c) is unstable because carbon atom is sp^{2} hybridised.

(iii) Intermediate (c) is stable because carbon atom is sp^{2} hybridised.

(iv) Intermediate (c) is less stable than the reactant (b).

Answers (1)

(i), (iv) are correct options.

The SN2 mechanism is a reaction mechanism in organic chemistry that involves a nucleophile attacking a substrate and a leaving group departing simultaneously.

Here are some details about the SN2 mechanism:

  • Concerted

    The reaction is concerted because it occurs in one step. 

  • Backside attack

    The nucleophile attacks the substrate from the back side, relative to the leaving group. 

  • Stereochemical inversion

    The stereochemical configuration at the central carbon inverts as the reaction proceeds. 

  • Rate

    The rate of an SN2 reaction is first order in both the substrate and the nucleophile. 

  • Bimolecular

    The reaction is bimolecular because two molecules are present in the transition state. 

Posted by

infoexpert21

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