_____________ plant emits large amount of SO2 as an air pollutant?
Correct answer: B. Sulphuric acid
- A. Nitric acid
- B. Sulphuric acid
- C. Chlor alkali
- D. Iron & steel
Explanation
Sulphuric acid manufacture can release sulphur dioxide, particularly from sulphur burning or sulphide-ore roasting, if gas conversion and absorption are incomplete. Nitric acid and chlor-alkali plants are associated with different principal air pollutants.
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