Which of the Following Represents the Molecular Formula of an Alkane

Question

Which of the following represents the molecular formula of an alkane?
A) C10H32
B) C10H40
C) C10H42
D) C10H22

Accepted Answer

The molecular formula of an alkane consists of carbon and hydrogen atoms only, with the ratio of hydrogen atoms to carbon atoms being 2:1. Option D is the only one that fits this criteria, with the formula being C11H22. The other options contain additional elements (S and B) and/or do not follow the 2:1 hydrogen to carbon ratio.