Question:
The pair that does NOT require calcination is:
The pair that does NOT require calcination is:
Updated On: Jun 23, 2024
- $ZnO$ and $MgO$
- $Fe_2O_3$ and $CaCO_3. MgCO_3$
- $ZnO$ and $MgO$
- $ZnCO_3$ and $CaO$
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The Correct Option is C
Solution and Explanation
$ZnO$ & $MgO$ both are in oxide form therefore no change on calcination
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Concepts Used:
General Principles and Processes of Isolation of Elements
What are Ores and Minerals?
Minerals are the naturally occurring, homogeneous inorganic solid substances. They are having a definite chemical composition and crystalline structure, hardness and color. For example, copper pyrite, calamine, etc.
Impurities in an ore are called gauge. The removal of a gauge from the ore is called concentration ore.
Several steps are involved in the extraction of pure metal from ores. Major steps are as follows –
- Concentration of the ore
- Isolation of the metal from its concentrated ore
- Purification of the metal