Environmental Sciences, asked by Akshikiski1163, 9 months ago

Why is roasting of concentrated ore done in excess air?

Answers

Answered by harshsingh26092002
1

Answer:

Roasting is done by heating concentrated ore which are in the form of metal sulphate in presence of excess air.

Explanation:

Moderately reactive metals are extracted by this process.

2ZnS + 3O2. -- 2ZnO. + 2SO2

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