Question

The number of carbon atoms in the organic compound named as 2,2-dimethylpropane is:
(a) two
(b) five
(c) three
(d) four

Answer 1

five
The number of carbon atoms in the organic compound 2,2-dimethylpropane (C₅H₁₂) is 5. 2,2-dimethylpropane is one of the three isomers of pentane.