s-Block ElementsHard
Question
Identify the correct statement.
Options
A.Gypsum contains a lower percentage of calcium than Plaster of Paris
B.Gypsum is obtained by heating Plaster of Paris
C.Plaster of Paris is obtained by hydration of gypsum
D.Plaster of Paris is obtained by partial oxidation of gypsum
Solution
2[CaSO4.2H2O] → 2CaSO4.H2O (calcium sulphate hemihydrate) + 3H2O
Gypsum Plaster of Paris
Gypsum Plaster of Paris
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