Chemistry
Grade-10
Easy

Question

Which is the correct statement from the following?

  1. Calcination is heating ore in presence of air
  2. Calcination is heating ore in the presence of oxygen 
  3. Roasting is heating ore in presence of air
  4. Roasting is heating ore in the absence of air.

hintHint:

Roasting is heating ore in presence of air

The correct answer is: Roasting is heating ore in presence of air


    Roasting is a process of heating of sulphide ore to a high temperature in presence of air.

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