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Question

Roasting is generally done in case of the following



Your Answer
A

Oxide ores

Your Answer
B

Silicate ores

Correct Answer
C

Sulphide ores

Your Answer
D

Carbonate ores


Solution

The correct option is C

Sulphide ores


Roasting:The process of heating the ores strongly in presence of oxygen, during which Sulfide is converted to an oxide and sulfur is released as sulfur dioxide a gas.

2Cu2S+3O22Cu2O+2SO2

2ZnS+3O22ZnO+2SO2

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