Which of the following molecules has intramolecular $H$-bonding?

$Statement-1$: $p$-Hydroxybenzoic acid has a lower boiling point than $o$-hydroxybenzoic acid.
$Statement-2$: $o$-Hydroxybenzoic acid has intramolecular hydrogen bonding.

Which of the following compounds forms the maximum number of hydrogen bonds?

Select the incorrect match.

What is the maximum number of hydrogen bonds in which a water molecule can participate?

The boiling point of water is exceptionally high because