Which of the following aromatic compounds contains exactly 15 bonds and 4 bonds?

Step-by-step solution

The number of bonds in a molecule containing one ring can be calculated as the total number of atoms in the molecule. Let us evaluate each option: Benzaldehyde ( C₆H₅CHO ): Total atoms = 6 + 5 + 1 + 1 + 1 = 14 . Thus, it has 14 bonds. It contains 3 bonds in the benzene ring and 1 bond in the carbonyl group, giving 4 bonds. Toluene ( C₆H₅CH₃ ): Total atoms = 6 + 5 + 1 + 3 = 15 . It has 15 bonds. However, it only has 3 bonds (in the benzene ring). Phenol ( C₆H₅OH ): Total atoms = 6 + 5 + 1 + 1 = 13 . It has 13 bonds