Physical State of Oxygen-Free Alkaloids
Alkaloids that do NOT contain oxygen are:
- Liquids, volatile — Correct Answer
- Solids, volatile
- Solids, non-volatile
- Liquids, non-volatile
Explanation:
Correct Answer: Liquids and volatile
Alkaloids are nitrogenous substances obtained from plant parts. Among them:
- Alkaloids containing oxygen: Solids and comparatively non-volatile (e.g. cocaine).
- Alkaloids NOT containing oxygen: Liquids and volatile (e.g. nicotine, lobeline, coniine).
Other Properties of Alkaloids
- Insoluble in water; their salts (e.g. atropine sulphate, caffeine citrate) are soluble in water.
- Bitter to taste.
- Incompatible with alkalies, tannic acid and heavy metals.
- Represent waste products of plant metabolism.
- Names end with 'ine'.
Note
Adrenaline is considered an animal alkaloid.
📚 About this Topic — Veterinary Pharmacology and Toxicology
This multiple choice question is from Veterinary Pharmacology and Toxicology, Veterinary Science. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from Veterinary Pharmacology and Toxicology to strengthen your preparation.
