Question

The critical temperature of water is higher than that of $O_2$ because the $H_{2}O$ molecule has:

• A. a fewer electrons than $O_2$
• B. a dipole moment
• C. a V shape structure
• D. two covalent bonds

Answer 1

The correct option is B a dipole moment

Ans $B$: A dipole moment

the critical temperature is directly proportional to the intermolecular force of attraction $H_{2}O$ is polar molecule $f$ has a higher intermolecular force of attraction than $O_2$, hence higher critical temperature.