Which of the following are the stages in contact process?
A
Burner
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B
Converter
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C
Absorption tower.
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D
All the above.
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Solution
The correct option is D All the above. There are four stages in the contact process: Burner to burn sulphur to form SO2, Converter to convert SO2 to SO3, Absorption tower to form oleum and Dilution tank to dilute oleum into sulphuric acid.