Question
How does (i) an electron withdrawing group (EWG) and (ii) an electron donating group (EDG) influence the acid strength of carboxylic end?
✓
Answer
The influence of the inductive effect on acidity is best understood in terms of the conjugate base, $\text{RCOO}^-$ and can be summarised as follows.
- EWG stabilises $\text{RCOO}^-$.
- EDG destabilises $\text{RCOO}^-$ and hence weakens the acid.
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