The `IUPAC` name of the compound with formula `C_(n)H_(2n+2)`, having the lowest possible molecular mass and capable of showing enantiomerism, is:

Options

A. `3`- Methyl hexane
B. `2,3`-Dimethyl pentane
C. Methane
D. Both (a) and (b)

Answer

D

Explanation

`underset((I))underset(("2-Methyl hexane"))(H_(3)C-underset(H)underset(|)overset(.^(2)C_(2)H_(5))overset(|)(.^(3)C^(**))-C_(3)^(6)H_(7))` or `underset((II))underset("2,3-Dimethyl pentane")(H_(3)C -underset(H)underset(|)overset(overset(5)(C_(2))H_(5))overset(|)(C_(3)^(**))-underset(2)overset(CH_(3))overset(|)(CH)-underset(1)CH_(3))`
Both (I) and (II) are optically active alkanes