Question:
Potassium metabisulphite is a/an
Potassium metabisulphite is a/an
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Remember: Potassium metabisulphite = preservative (E224) in juices, wines, squashes.
Updated On: Oct 22, 2025
- Weedicide
- Insecticide
- Preservative
- Nematode controller
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The Correct Option is C
Solution and Explanation
Step 1: Chemical use.
Potassium metabisulphite (K$_2$S$_2$O$_5$) is mainly used in food processing and winemaking as a preservative and antioxidant.
Step 2: Eliminate wrong options.
(A) Weedicide – kills weeds, not true.
(B) Insecticide – controls insects, not applicable here.
(D) Nematode controller – controls soil nematodes, not correct.
Step 3: Conclusion.
Thus, potassium metabisulphite is a preservative.
Potassium metabisulphite (K$_2$S$_2$O$_5$) is mainly used in food processing and winemaking as a preservative and antioxidant.
Step 2: Eliminate wrong options.
(A) Weedicide – kills weeds, not true.
(B) Insecticide – controls insects, not applicable here.
(D) Nematode controller – controls soil nematodes, not correct.
Step 3: Conclusion.
Thus, potassium metabisulphite is a preservative.
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