Calcium sulphate is found in nature in two forms: anhydrous calcium sulphate and…
CHEMISTRY · Single correct · ICSE · Chemistry · Water · Water
Problem
Calcium sulphate is found in nature in two forms: anhydrous calcium sulphate and hydrated calcium sulphate. When anhydrous calcium sulphate is heated with coke, sulphur dioxide gas is obtained. When hydrated calcium sulphate is heated to 200∘C, it forms anhydrous salt. The anhydrous calcium sulphate is called:
(1) Gypsum
(2) Anhydrite
(3) Plaster of Paris
(4) Lime