Platinum catalyst used in the earlier days of sulphuric acid manufacture by contact process suffers from the drawback like_________________?
Correct answer: D. All A, B. and C.
- A. High cost
- B. Fragile nature
- C. Easy poisoning tendency
- D. All A, B. and C.
Explanation
Platinum was effective in the contact process but was costly, mechanically fragile, and readily poisoned by impurities such as arsenic compounds. Therefore all three listed drawbacks apply.
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