Question

What is meant by isomer??
How many structural isomers can you draw for Butane and name the structural isomers. ​

Answer 1

Hope it will help you.

Answer 2

A structural isomer, orconstitutional isomer, is a type of isomer in which molecules with the same molecular formula have different bonding patterns and atomic organization, as opposed to stereoisomers, in which molecular bonds are always in the same order and only spatial arrangement differs.