Question

To which class of compounds do adrenaline, noradrenaline, and dopamine belong?

• A. Phenethylamines Opium
• B. Diphenolethylamines
• C. Catecholamines
• D. Adrenergics

Answer 1

The Correct Option is C

Step 1: Understanding the Classification of These Compounds - Adrenaline (Epinephrine), Noradrenaline (Norepinephrine), and Dopamine are neurotransmitters and hormones involved in sympathetic nervous system regulation. - These compounds share a catechol nucleus (a benzene ring with two hydroxyl groups) and an amine group, classifying them as catecholamines.


Step 2: Evaluating the Given Options - Phenethylamines Opium (Option A) is incorrect because opium is not related to these neurotransmitters. - Diphenolethylamines (Option B) is not a recognized class. - Catecholamines (Option C) is the correct classification. - Adrenergics (Option D) is a functional class referring to drugs that act on adrenergic receptors but does not define the chemical structure.


Step 3: Selecting the Correct Answer - Since adrenaline, noradrenaline, and dopamine have a catechol and amine functional group, the correct choice is (C) Catecholamines.