8.2 Carboxylic acids and their derivative — Chemistry STD 12 Science — Question

$I.$  In gaseous phase, the vapour pressure of $CH_3COOH$ is less than expected. 

$II.$ In benzene, acetic acid dimerises.

$III.\, CH_3OH$ is more viscous than $H_2O.$

$IV.\, CH_3OCH_3$ is non-polar but soluble in water. 

Select the correct set of codes using $T$ for true and $F$ for false statements in given sequence.