When the ore limestone is heated carbon dioxide is given off. This operation

When the ore limestone is heated carbon dioxide is given off. This operation in metallurgy is known as

Options

(a) smelting
(b) ore dressing
(c) calcination
(d) roasting

Correct Answer:

calcination

Explanation:

CaCO₃(s) → CaO(s) + CO₂(g)

admin:

Related Questions

  1. For spontaneous cooling of a hot metal rod (system) in air
  2. Which of the following shows maximum number of oxidation states
  3. The amphoteric oxide is
  4. In the manufacture of sulphuric acid by contact process, Tyndall box is used to
  5. The weight of iron which will be converted into its oxide(Fe₃O₄) by the action of 18g