Explain following term :
$(a)$ Isomerism $(b)$ position isomerism $(c)$ chain isomerism $(d) $ functional group isomerism $(e)$ metamerism $(f)$ optical isomerism
Relation between $(A)$ and $(B)$ is
Which of the following is optically active
In which structure central carbon ($C-3$) not chiral centre ?
The total number of stereoisomer possible for $2, 3$ -dichloro butane