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Opiate narcotic is

1. Bhang
2. Charas
3. Heroin
4. Nicotine

Correct answer: Heroin

Solution

Heroin is an opiate narcotic because it is derived from morphine and acts on opioid receptors, producing strong analgesic and addictive effects. The other options are not opiate narcotics: bhang and charas are cannabis products, and nicotine is a stimulant.

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