Alcohols Phenols and Ethers - Result Question 50

####51. The compound that is most difficult to protonate is :

[2019]

(a) HOH

(b)CO

(c) H3C>O>CH3

(d) PhCO

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Solution:

  1. (d)Oc1ccccc1 lone pair of es 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.


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