# How many chiral carbons does 2,4-dimethyl pentane have?

Nov 11, 2015

2,4-Dimethylpentane has no chiral carbons.

#### Explanation:

The structure of 2,4-dimethylpentane is

${\left({\text{CH"_3)_2"CHCH"_2"CH"("CH}}_{3}\right)}_{2}$

A carbon atom must have four different groups to be chiral.

Every ${\text{CH}}_{3}$ carbon has three $\text{H}$ atoms.

The ${\text{CH}}_{2}$ carbon has two $\text{H}$ atoms.

And the $\text{CH}$ carbons each have two ${\text{CH}}_{3}$ groups.

So, no carbon atom in 2,4-dimethylpentane is chiral.