Which one of the following compounds has the smallest number of hydrogen atoms?
A)butyne
B)2-methylpropane
C)butene
D)2-methybutane
E)butane

Question

Quizplus · Accepted Answer

Butyne has only two hydrogen atoms as compared to the other compounds. 
2-methylpropane has nine hydrogen atoms,
butene has eight hydrogen atoms, 
2-methylbutane has twelve hydrogen atoms, 
butane has ten hydrogen atoms.

Which One of the Following Compounds Has the Smallest Number