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A SN2 reaction involves back side attack of nucleophile at the α-carbon of substrate because
  • a)
    both nucleophile and leaving group are electron rich, nucleophilic attack occur from most distant position
  • b)
    there is greater electron density on the back side of substrate
  • c)
    there is not enough physical space in the front side from where leaving group leaves the substrate
  • d)
    substrate possesses a hole in the backside
Correct answer is option 'A,C'. Can you explain this answer?
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A SN2 reaction involves back side attack of nucleophile at the α-...
Both nucleophile and leaving group are electron rich species, nucleophile attacks from backside (most remote position) to have minimum repulsion with leaving group. Also, due to the presence of leaving group on front side there is less physical space for attack of nucleophile.
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A SN2 reaction involves back side attack of nucleophile at the α-...

Back side attack in SN2 reaction:

- Both nucleophile and leaving group are electron rich: In an SN2 reaction, the nucleophile attacks the substrate from the back side because both the nucleophile and leaving group are electron-rich species. This leads to a nucleophilic attack occurring from the most distant position, which results in the formation of the product.

- There is not enough physical space in the front side: Another reason for the back side attack in an SN2 reaction is that there is not enough physical space in the front side from where the leaving group leaves the substrate. This makes it energetically unfavorable for the nucleophile to approach from the front side, leading to a back side attack.

In conclusion, the combination of electron-rich species and the lack of physical space on the front side of the substrate are the main reasons why back side attack occurs in an SN2 reaction.
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A SN2 reaction involves back side attack of nucleophile at the α-carbon of substrate becausea)both nucleophile and leaving group are electron rich, nucleophilic attack occur from most distant positionb)there is greater electron density on the back side of substratec)there is not enough physical space in the front side from where leaving group leaves the substrated)substrate possesses a hole in the backsideCorrect answer is option 'A,C'. Can you explain this answer?
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A SN2 reaction involves back side attack of nucleophile at the α-carbon of substrate becausea)both nucleophile and leaving group are electron rich, nucleophilic attack occur from most distant positionb)there is greater electron density on the back side of substratec)there is not enough physical space in the front side from where leaving group leaves the substrated)substrate possesses a hole in the backsideCorrect answer is option 'A,C'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about A SN2 reaction involves back side attack of nucleophile at the α-carbon of substrate becausea)both nucleophile and leaving group are electron rich, nucleophilic attack occur from most distant positionb)there is greater electron density on the back side of substratec)there is not enough physical space in the front side from where leaving group leaves the substrated)substrate possesses a hole in the backsideCorrect answer is option 'A,C'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A SN2 reaction involves back side attack of nucleophile at the α-carbon of substrate becausea)both nucleophile and leaving group are electron rich, nucleophilic attack occur from most distant positionb)there is greater electron density on the back side of substratec)there is not enough physical space in the front side from where leaving group leaves the substrated)substrate possesses a hole in the backsideCorrect answer is option 'A,C'. Can you explain this answer?.
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