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NEETChemistryHaloalkanes and Haloarenes

What effect do bulky substituents have on the rate of S N 2 reactions?

Options

  1. AThey have no effect.
  2. BThey increase the rate.
  3. CThey decrease the rate.
  4. DThey reverse the reaction.

Correct answer

C. They decrease the rate.

Step-by-step solution

Bulky substituents on or near the carbon atom hinder the approaching nucleophiles, causing a dramatic inhibiting effect and decreasing the rate of SN2 reactions.

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