Class 12 Chemistry General Principles and Processes of Isolation of Elements Roasting and Calcination

Medium

Which of the following on thermal decomposition yields a basic as well as acidic oxide?

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A
$NaNO_3$
B
$KClO_3$
C
$CaCO_3$
D
$NH_4NO_3$

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Class 12 Questions

Class 12

Chemistry Questions

Chapter

General Principles and Processes of Isolation of Elements

Subtopic

Roasting and Calcination

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Similar Questions

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

Medium

The mixture obtained from the roasting of copper pyrites is ......... .

Medium

Choose the correct code regarding the Roasting process.
$I$. It is the process of heating ore in air to obtain the oxide.
$II$. It is an exothermic process.
$III$. It is used for hydrated oxide and oxysalt ore.
$IV$. It is used after the concentration of ore.

Medium

Which of the following reactions is an example of calcination?

Easy

Extraction of zinc from zinc blende $(ZnS)$ is achieved by:

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