McqMate
| Q. |
The chief source of naphthalene is – |
| A. | Coal-tear |
| B. | Diesel |
| C. | Charcoal |
| D. | Camphor |
| Answer» A. Coal-tear | |
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Explanation: Coal tar is a brown or black liquid of extremely high viscosity. In the coal gas era, there were many companies in Britain whose business was to distill coal tar to separate the higher-value fractions, such as naphtha, creosote and pitch. Naphthalene is derived from a kind of naphtha (a broad term encompassing any volatile, flammable liquid hydrocarbon mixture, including coal tar). |
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