A liquid hydrocarbon obtained from fractional distillation of coal tar that is used in the pharmaceutical industry is
- xylene
-
benzene
- hexane
- Toluene
The correct answer is: B
Explanation
Coal tar is a known human carcinogen. It contains potent carcinogens like benzo(a)pyrene, benz(a)anthracene, and dibenz(a,h)anthracene.
Fractional distillation of coal tar is a process that produces aromatic hydrocarbons like benzene, creosotes, naphthalene, anthracene, carbolic and cresylic acids, pyridine, and pitch. Benzene is used in the pharmaceutical industry as a solvent and in the synthesis of drugs such as cyclohexane, phenol etc.Thus the correct answer is option B- Benzene
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