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| Q. |
The anti-malarial drug quinine is made from a plant. The plant is |
| A. | Neem |
| B. | Eucalyptus |
| C. | Cinnamon |
| D. | Cinchona |
| Answer» D. Cinchona | |
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Explanation: Quinine is an alkaloid, a naturally occurring chemical compound. How it works as a medicine is not entirely clear. Quinine was first isolated in 1820 from the bark of a cinchona tree. |
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