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Class 12ChemistryGeneral Principles and Processes of Isolation of ElementsRoasting and Calcination
Easy

What is the process of heating an ore in the absence of air at a temperature below its melting point called?

  • A
    Leaching
  • B
    Roasting
  • C
    Smelting
  • D
    Calcination
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Class 12 Questions

Class 12

Chemistry Questions

Chapter

General Principles and Processes of Isolation of Elements

Subtopic

Roasting and Calcination

Similar Questions

Match the following:
List-$I$ List-$II$
$(I)$ Calcination $a. Fe_2O_3 \cdot nH_2O \rightarrow Fe_2O_3 + nH_2O$
$(II)$ Roasting $b. 2Cu_2S + 3O_2 \rightarrow 2Cu_2O + 2SO_2$
$(III)$ Flux $c. SiO_2 + FeO \rightarrow FeSiO_3$
$(IV)$ Thermite $d. Cr_2O_3 + 2Al \rightarrow Al_2O_3 + 2Cr$

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What is the process of heating pyrites to remove sulfur called?

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When limestone is heated strongly,it gives off $CO_2$. In metallurgy,this process is known as:

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

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Heating of ore in the presence of air to remove sulphur impurities is called:

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