Moderate
Humic acid is soluble in____________________?
Correct answer: B. Alkali
- A. Acid
- B. Alkali
- C. Both a & b
- D. None of the above
Explanation
Humic acid dissolves in alkaline solutions but precipitates when the solution is acidified, which is the basis for separating it from fulvic acid. Therefore alkali, not acid, is the appropriate option.
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