Chapter 12.3, Problem 7P

Compound	Molecular formula before hydrogenation	Molecular formula after hydrogenation	Number of rings	Number of pi bonds
A	${\text{C}}_{\text{10}}{\text{H}}_{\text{12}}$	${\text{C}}_{\text{10}}{\text{H}}_{\text{16}}$	?	?
B	?	${\text{C}}_4{\text{H}}_{\text{10}}$	$0$	$1$
C	${\text{C}}_6{\text{H}}_8$	?	$1$	?

Complete the missing information for compounds A, B, and C, each subjected to hydrogenation.

The number of rings and π bonds refers to the reactant (A, B, or C) prior to hydrogenation.