IMAT 2011 Q62 [Benzene Rings]

An aromatic compound consists of two benzene rings joined together.

Which of the following could be its formula?

  1. {C_{10}H_8}
  2. {C_{10}H_{10}}
  3. {C_{10}H_{12}}
  4. {C_{12}H_{10}}
  5. {C_{12}H_{12}}

A. 1 and 4
B. 2 and 4
C. 3 and 4
D. 2 and 5
E. 3 and 5