In the following compound, the favourable site/s for protonation is/are :

In the following compound,
the favourable site/s for protonation is/are :

1. (a) and (e)
2. (b), (c) and (d)
3. (a) and (d)
4. (a)

Solution

(b), (c) and (d) are the favourable sites for protonation because these are localilsed lone pair electron.

Asked in: JEE Main 2019 (11 Jan Shift 2)

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