The bond angle between $H-O-H$ in ice is closest to

Which one of the following is the correct decreasing order of boiling point?

Select the incorrect match.

Out of the given two compounds,the vapour pressure of $B$ at a particular temperature is:

Given below are two statements:
Statement $I$: $o$-Nitrophenol is steam volatile due to intramolecular hydrogen bonding.
Statement $II$: $o$-Nitrophenol has a high melting point due to hydrogen bonding.
In the light of the above statements,choose the most appropriate answer from the options given below:

Name two intermolecular forces that exist between $HF$ molecules in the liquid state.