Metamerism can be exhibited by the compounds containing

The type of isomerism between $CH_2Cl-CH_2Cl$ and $CH_3CHCl_2$ is ..........

Which of the following compounds does not exhibit tautomerism?

How many structural isomers are possible for the molecular formula $C_4H_{10}O$?

How many isomers can be produced from the molecular formula $C_4H_{10}O$?

For which of the following parameters would the structural isomers $C_2H_5OH$ and $CH_3OCH_3$ be expected to have the same values? (Assume ideal behavior)