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Standard VI
Chemistry
Extraction of Oils
Sulfur can be...
Question
Sulfur can be removed from coal during burning by using:
A
copper sulphate
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B
ferrous oxide
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C
both A and B
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D
limestone
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Solution
The correct option is
D
limestone
Sulfur can be removed from coal during burning by using limestone as a bed material in fluidized bed combustion.
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Sulfur dioxide can be removed from waste gases after combustion of the fuel. The sulfur dioxide is treated with powdered limestone to form calcium sulfate.
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