Multiple Choice
Which functional group is responsible for the ability to taste phenylthiocarbamide (PTC)?
2. Molecular Representations
Functional Groups
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Which of the following is a functional group commonly found in alcohols?
A
Carbonyl group (C=O)
B
Amino group (-NH2)
C
Hydroxyl group (-OH)
D
Carboxyl group (-COOH)
Verified step by step guidance1
Identify the functional groups listed in the problem: Carbonyl group (C=O), Amino group (-NH2), Hydroxyl group (-OH), and Carboxyl group (-COOH).
Recall the definition of a functional group: a specific group of atoms within a molecule that is responsible for a characteristic chemical reaction of that molecule.
Understand that alcohols are organic compounds characterized by the presence of a hydroxyl group (-OH) attached to a carbon atom.
Review the structure of each functional group: Carbonyl group (C=O) is found in aldehydes and ketones, Amino group (-NH2) is found in amines, Hydroxyl group (-OH) is found in alcohols, and Carboxyl group (-COOH) is found in carboxylic acids.
Conclude that the functional group commonly found in alcohols is the hydroxyl group (-OH), as it is the defining feature of alcohols.
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