WBJEE · Chemistry · Haloalkanes and Haloarenes
Which of the following statements about the \(\mathrm{S}_{\mathrm{N}} 2\) reaction mechanism is/are true?
- A The rate of reaction increases with increasing nucleophilicity.
- B The number 2 denotes a second order reaction
- C Tertiary butyl substrates do not follow this mechanism
- D The optical rotation of substrates always changes from (+) to ( - ) or from ( - ) to (+) in the products
Answer & Solution
Correct Answer
(C) Tertiary butyl substrates do not follow this mechanism
Step-by-step Solution
Detailed explanation
Hint: \(S_N 2\) reaction rate depends upon the nucleophilicity of the attacking nueleophile. Here the 2 in the notation stands for Bimolecularity. Tert-butyl substrate fails in \(\mathrm{S}_{\mathrm{N}} 2\) due to crowding. Optical rotation does not change necessarily from…
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