Which is the habit-forming ingredient of tobacco?
Which is the habit-forming ingredient of tobacco? Correct Answer Nicotine
Habit-forming active ingredient of tobacco is nicotine. It is synthesised in the roots but accumulates in the leaves. Nicotine content of tobacco leaf is 0.5-8%. A cigarette contains 6-11 mg of nicotine, out of which 1-3 mg is inhaled.