In the preparation of benzene by the reduction of phenol using Zinc dust, what is the difference in — Aromatic Hydrocarbons Chemistry Question

💡 Solution & Explanation

Phenol has the molecular formula $C_6H_6O$. Its molecular weight is $(12 \times 6) + (1 \times 6) + 16 = 94$. The product, benzene, has the molecular formula $C_6H_6$. Its molecular weight is $(12 \times 6) + (1 \times 6) = 78$. The difference in weight is the single oxygen atom removed by the zinc, which is $16$ g/mol.