Alcohols Phenols and Ethers - Result Question 50
####51. The compound that is most difficult to protonate is :
[2019]
(a) $H-O \to H$
(b)
(c) $H_3 C>O>CH_3$
(d) $Ph$
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Solution:
- (d)
Oc1ccccc1 lone pair of $e^{-s}$ present on oxygen atom is involved in delocalisation. Therefore, it is most difficult to protonate the phenol amongst the given compounds, due to less availability of e-s.
