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Consider the following SN2 reaction,
Q. 
Which of the following could increase the reactivity (rate) of reaction ?
  • a)
    Increasing NaOH concentration
  • b)
    Adding some Nal
  • c)
    Replacing CHsBr by 14CH3— Br
  • d)
     Using NaO18 H in place of NaOH
Correct answer is option 'A,B,D'. Can you explain this answer?
Verified Answer
Consider the following SN2 reaction,Q.Which of the following could inc...
Increasing concentration of nucleophile (NaOH) increases the reactivity. Adding some Nal also catalyse reaction because of following equilibrium.

Now reaction occur with CH3I which has better leaving group. Heavier isotope forms stronger covalent bond. Hence, replacing CH3Br by 14CH3Br stabilises substrate, decreases rate whereas replacing NaOH by NaO18H stabilises transition state increases rate of reaction.
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Consider the following SN2 reaction,Q.Which of the following could increase the reactivity (rate) of reaction ?a)Increasing NaOH concentrationb)Adding some Nalc)Replacing CHsBr by 14CH3— Brd)Using NaO18 H in place of NaOHCorrect answer is option 'A,B,D'. Can you explain this answer? for Class 12 2026 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Consider the following SN2 reaction,Q.Which of the following could increase the reactivity (rate) of reaction ?a)Increasing NaOH concentrationb)Adding some Nalc)Replacing CHsBr by 14CH3— Brd)Using NaO18 H in place of NaOHCorrect answer is option 'A,B,D'. Can you explain this answer? covers all topics & solutions for Class 12 2026 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following SN2 reaction,Q.Which of the following could increase the reactivity (rate) of reaction ?a)Increasing NaOH concentrationb)Adding some Nalc)Replacing CHsBr by 14CH3— Brd)Using NaO18 H in place of NaOHCorrect answer is option 'A,B,D'. Can you explain this answer?.
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