Which of the following groups does not show $(-R)$ effect?

Which of the following groups does not show $(-R)$ effect?
  1. $\times$ ı. -CHO
  2. $\mathrm{X}_{2} \cdot-\mathrm{COOH}$
  3. $\mathrm{X}_{3}-\mathrm{CN}$
  4. $\mathrm{OH}$

Solution

$\mathrm{OH}$ shows $\mathrm{+R}$ effect

Asked in: MHT CET 2020 (20 Oct Shift 1)

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