Acetic acid exists as a dimer in benzene solution. This is due to

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

The hydrogen bond strength will be highest for

Out of $o$-nitrophenol and $p$-nitrophenol,which is more volatile?

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 $:$

Amongst $H_2O$,$H_2S$,$H_2Se$ and $H_2Te$,the one with the highest boiling point is: