The `IUPAC` name `2`-methylpropyl corresonds to the

Options

A. (1) butyl group
B. (2) tert-butyl group
C. (3) isobutyl group
D. (4) sec-butyl group

Answer

C

Explanation

`overset(3)(CH_(3))-underset("Isobutyl (2-methylpropyl)")(underset(CH_(3))underset(|)overset(2)(CH)-overset(1)CH_(2)-)` , `CH_(3)CH_(2)underset(Butyl)CH_(2)CH_(2)`-
`CH_(3)-underset(("tert-Butyl"))underset("1,1-Dimethylethyl")(underset(CH_(3))underset(|)overset(CH_(3))overset(|)(C) -)` , `CH_(3)-underset(("sec-Butyl"))underset("1-Methylpropyl")(underset(|)overset(1)(CH)-overset(2)(C)H_(2)overset(3)(C)H_(3))`