In the Stepwise Preparation of Pure Calcium Carbonate from Limestone,the

Multiple Choice

In the stepwise preparation of pure calcium carbonate from limestone,the step referred to as calcination involves:

A) thermal decomposition of calcium carbonate to calcium oxide
B) addition of water to calcium oxide to form calcium hydroxide
C) bubbling carbon dioxide through aqueous calcium hydroxide
D) heating calcium oxide with carbon to form calcium metal
E) melting of calcium oxide