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Question
Sulphur in the first step of Contact process can be produced by ______.
Options
reactive metals
metallic oxides
metallic sulphides
green vitriol
MCQ
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Solution
Sulphur in the first step of Contact process can be produced by metallic sulphides.
Explanation:
In the first step of the Contact process, sulphur dioxide gas (SO2) is obtained either by burning elemental sulphur or by roasting metallic sulphides like iron pyrites (FeS2).
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