Question

Humic substances are composed of
(A). Phenols
(B). Quinones
(C). Carboxylic acid
(D). Fatty acid

Choose the correct answer from the options given below:

• A. (A), (B) and (D) only.
• B. (A), (B) and (C) only.
• C. (A), (B), (C) and (D).
• D. (B), (C) and (D) only.

Hint:

Carboxyl (\(\text{-COOH}\)) and phenolic hydroxyl (\(\text{-OH}\)) groups are the main functional groups that give humic substances their high cation exchange capacity (CEC).

Answer 1

The Correct Option is B