Question 52 of 63
Q.Formula of Gypsum is:
(a) CaSO4
(b) CaSO4.2H2O
(c) CaSO4.(1/2)H2O
(d) CaSO4.H2O
Tamil Nadu DgeTamil Nadu HSC First Year (DGE) Board 2020MCQ· 1mImportance★★★★★
83% · 52/63 Questions
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Start your 14-day free trial to unlock the full solution →Gypsum is calcium sulphate dihydrate, CaSO4.2H2O.
Gypsum is a naturally occurring mineral form of calcium sulphate that crystallises with two molecules of water of hydration per formula unit, giving CaSO4.2H2O. It is important industrially because heating gypsum gently (around 393 K) drives off three-quarters of its water of crystallisation to give plaster of Paris, CaSO4.(1/2)H2O — which is option (c), not gypsum i …
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