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CBSE--class10--Chemistry-2017-->View question


Asked On2017-07-12 05:45:41 by:Fututron

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(D) Calcium sulphate, calcium chloride
Calcium sulfate (or calcium sulphate) is the inorganic compound with the formula CaSO4 and related hydrates. In the form of γ-anhydrite (the anhydrous form), it is used as a desiccant. One particular hydrate is better known as plaster of Paris, and another occurs naturally as the mineral gypsum
Calcium chloride is an inorganic compound, a salt with the chemical formula CaCl2. It is a colorless crystalline solid at room temperature, highly soluble in water. Calcium chloride is commonly encountered as a hydrated solid with generic formula CaCl2(H2O)x, where x = 0, 1, 2, 4, and 6. These compounds are mainly used for deicing and dust control. Because the anhydrous salt is hygroscopic, it is used as a desiccant
Hard water can be prepared by dissolving sulphates, chlorides or bicarbonate salts of Ca2+ or Mg2+ ions.

Answerd on:2017-07-13 Answerd By:13priya

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