Question

Narcotic and soothing properties of tobacco is due to or Harmful alkaloid contained in the leaves of tobacco is ___________.

• A. Caffeine
• B. Aconite
• C. Nicotine
• D. Codeine

Answer 1

The correct option is C Nicotine

Nicotine is a harmful alkaloid of tobacco and the pharmacological activity of tobacco is almost entirely due to its content nicotine which is consumed in various forms, is absorbed through the lining of the lungs,gut etc it acts upon the nervous system, may cause paralysis, cyanosis etc. It is an irritant and therefore may lead to oral and lung cancer.

So, the correct answer is 'Nicotine'