Which of the following kinds of isomerism can nitroethane exhibit?

How many structural isomers are possible for $C_3H_6ClBr$ and how many of them are optically active?

Which of the following will have a meso isomer?

Tautomerism is exhibited by:

Define position isomerism and provide an example.

Identify the correct statements from the following. Choose the correct answer from the options given below.
$A$. Pentan$-3-$one and Pentan$-2-$one are metamers.
$B$. Butanenitrile and Butaneisonitrile are functional isomers.
$C$. Butan$-1-$ol and Butan$-2-$ol are position isomers.
$D$. Butan$-1-$amine and $N$-methylpropan$-1-$amine are homologous.