Assertion : $H_2{O}_2$ has higher boiling point than water.
Reason : $H_2{O}_2$ has stronger dipole-dipole interactions than that shown by water.

The correct option is A If both assertion and reason are true and reason is the correct explanation of assertion
$H_2{O}_2$ has boiling point of about ${150}^{o}C$
and boiling point of water is ${100}^{o}C$
This difference in their boiling point can be attributed by variation in strength of intermolecular forces. As hydrogen peroxide has greater polarizability, stronger London dispersion force, and greater dipole moment as compared to water. Hydrogen peroxide exhibits hydrogen bonding more as compared to water which greatly impacts on its boiling point.
$H_2{O}_2$ is more extensively associated by hydrogen bonding than water.