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chemical engineering chemical process
1. Catalyst used in the manufacture of sulphuric acid by chamber & contact processes are respectively
(A): oxides of nitrogen & Cr2O3.
(B): oxides of nitrogen & V2O5 on a porous carrier.
(C): V2O5 & Cr2O3.
(D): V2O5 on a porous carrier & oxides of nitrogen.
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