Which oxide of nitrogen is used as a catalyst in lead chamber process for the manufacture of `H_2SO_4`?
A. `NO`
B. `NO_(2)`
C. `N_(2)O_(4)`
D. `N_(2)O_(5)`

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1 Answers

Correct Answer - A
`2SO_(2) + O_(2) overset(NO)to 2SO_(3)`

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