# What do we call the hydrocarbon that has formula C_5H_12 that CONTAINS only methyl hydrogens? "A. Isopentane;" "B. Neopentane;" "C. 2,2-dimethylpentane;" "D. n-pentane."

##### 1 Answer
Nov 18, 2016

$\text{B. Neopentane}$

#### Explanation:

$\text{Neopentane}$ $\equiv$ $C {\left(C {H}_{3}\right)}_{4}$. Here, all the hydrogens are bound to a primary carbon centre. The central carbon is quaternary and bound to 4 carbons.

You should draw structures of the other molecules to verify their connectivity.