Select the correct statement:

  • A
    Roasting involves heating the ore in the absence of air.
  • B
    Calcination involves heating the ore above its melting point.
  • C
    Smelting involves heating the ore with a suitable reducing agent and flux below its melting point.
  • D
    Calcination of calcium carbonate is endothermic.

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Similar Questions

Which of the following reactions is an example of the calcination process?

Consider the following statements:
Roasting is carried out to:
$(i)$ convert sulphide to oxide and sulphate
$(ii)$ remove water of hydration
$(iii)$ melt the ore
$(iv)$ remove arsenic and sulphur impurities
Of these statements:

Which statement is correct for roasting?

Zinc is obtained from zinc blende by:

Among the following,the calcination process is

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