Which of the following alkanes is optically active ?

Options

A. 3-methyl hexane
B. propane
C. 2,3, 4-trimethyl pentane
D. 2-methyl butane

Answer

A

Explanation

3-methylhexane is
`CH_(2)-Ch_(2)-CH_(2)-underset(H)underset(|)overset(CH_(3))overset(|)C^(**)-CH_(2)-CH_(3)`
`C^(**)` =chiral carbon atom (due to which the compound is optically active).