Question

Catalyst used in the oxidation of $\mathrm { SO } _ { 2 } \rightarrow \mathrm { SO } _ { 3 }$

• A. Nickel
• B. $\mathrm { ZnO } \cdot \mathrm { Cr } _ { 2 } \mathrm { O } _ { 3 }$
• C.
• D. Iron

Answer 1

Answer: (C)

Answer 2