List II 5 Match the substances in List I with the appropriate answer in List II. List I A: Permanent hardness in water 1. Green vitriol B: Hygroscopic 2. Paint C: Temporary hardness in water 3. Magnesium chloride 4. Magnesium bicarbonate D: Heptahydrate 5. Calcium oxide E: Colloidal
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Answer:
4. magnesium bicarbonate D: Heptahydrate
Explanation:
magnesium + bicarbonate -> Heptahydrate
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