Which of the Following is the Molecular Formula of Nonane

Question

Which of the following is the molecular formula of nonane?
A) C9H22
B) C9H20
C) C9H21
D) C9H18

Accepted Answer

Nonane is an alkane with nine carbon atoms. The molecular formula for alkanes is CnH2n+2. For nonane, n=9, so the formula is C9H20, which matches choice B.