Alginates are_____________?
Correct answer: C. Hydrocolloid
- A. Sol
- B. Gel
- C. Hydrocolloid
- D. Colloid
Explanation
Alginate is an irreversible hydrocolloid because its sol changes chemically into an insoluble calcium alginate gel and cannot be returned to sol by heating. Thus, hydrocolloid is the more specific classification among the options.
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