In which of the following is the strongest hydrogen bonding observed?

Which of the following is not a best representation of the $H$-bond?

Assertion : Boiling point of $p$-nitrophenol is higher than that of $o$-nitrophenol.
Reason : $p$-nitrophenol has intermolecular hydrogen bond whereas $o$-nitrophenol has intramolecular hydrogen bond.

Which one of the following compounds shows the presence of intramolecular hydrogen bond?

Which of the following molecules are expected to exhibit intermolecular $H$-bonding?
$(I)$ Acetic acid $(II)$ $o$-nitrophenol $(III)$ $m$-nitrophenol $(IV)$ $o$-boric acid
Select the correct alternative.

The steam volatile compounds among the following are $:$
$(A)$ $o$-nitrophenol
$(B)$ $o$-nitroaniline
$(C)$ $p$-aminophenol
$(D)$ $p$-hydroquinone
Choose the correct answer from the options given below $:$