What are X and Y respectively in the following reactions?

What are X and Y respectively in the following reactions?
  1. $\mathrm{H}^{+}, \mathrm{H}^{+}$
  2. $\mathrm{H}^{+}$, Pyridine
  3. Pyridine, $\mathrm{H}^{+}$
  4. Pyridine, Pyridine

Solution

First reaction is esterification reaction process in the presence of acid i.e $\mathrm{H}^{+}$.

Asked in: AP EAMCET 2024 (21 May Shift 2)

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