# How many structural isomers of C_6H_14 are there?

Jun 28, 2017

I count 5 structural isomers of hexane, ${C}_{6} {H}_{14}$..........

#### Explanation:

And these are.......

$\left(i\right)$ $\text{n-hexane}$, ${\text{H"_3"CCH"_2"CH"_2"CH"_2"CH"_2"CH}}_{3}$

$\left(i i\right)$ $\text{2-methylpentane}$, ${\text{H"_3"CCH(CH"_3")CH"_2"CH"_2"CH}}_{3}$

$\left(i i i\right)$ $\text{3-methylpentane}$, ${\text{H"_3"CCH"_2"CH(CH"_3")CH"_2"CH}}_{3}$

$\left(i v\right)$ $\text{2,2-dimethylbutane}$, ${\text{H"_3"CCH"_2"C(CH"_3")"_2"CH}}_{3}$

$\left(v\right)$ $\text{2,3-dimethylbutane}$, ${\text{H"_3"CCH(CH"_3")CH(CH"_3")CH}}_{3}$

The way to remember these is to sit down with a molecular model set, and actually make models of each isomer.