Alkanes

34. ​​ O/N​​ 2014/P11/Q37

Which alkane, when any one hydrogen atom is substituted by a chlorine atom, will not produce isomers?​​ 

Answer: ​​ A

Explaination

Isomers in alkane starts from butane as it is defined as​​ 

“Compounds having same molecular formula but different structural formula” .​​ 

Only option A is that alkane which on substitution will not give isomer as it looks same or it will not change the structure.