Question

what is the iupac name of this

Answer 1

The longest carbon chain is of 4 C
and named such that Cl is attached to the second C.

So the IUPAC name becomes 2-chlorobutane.

HOPE THIS HELPS..... :-)

Answer 2

At first we choose longest chain : 4 carbon atom
Then we decide the position of Cl (halogen group) : 2 position

Therefore, the IUPAC name is :

2- Chlorobutane