how is sulphuric acid prepared by contact process?
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Contact process, modern industrial method of producing sulfuric acid; it has largely replaced the chamber, or lead-chamber, process. ... Sulfur dioxide and oxygen, passed over a hot catalyst, unite to form sulfur trioxide, which in turn combines with water to make sulfuric acid.
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contact process modern industrial method of producing sulphuric acid it has a large be replaced the chamber or lead chamber process
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