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Question

Calcination is a process in which ore is heated in the absence of air. As a result of which the ___ ore is converted into its oxide.


  1. No of protons

  2. No of neutrons

  3. No of electrons

  4. Sum of Electrons and protons


Solution

The correct option is B

No of neutrons


Calcination is a process in which ore is heated in the absence of air. As a result of calcination, the carbonate ore is converted into its oxide. Whereas roasting is a process in which ore is heated in the presence of excess of air. As a result of roasting, the sulphide ore is converted into its oxide.

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