1.

In Preparation of sulphuric acid from sulphur dioxide in lead chamber process. What substance is used as a catalyst?

Answer»

Manganese DIOXIDE
Vanadium pentoxide
NITRIC oxide
Raney Nickel

Solution :Lead chamber process:
The different steps are
(i) `2H_(2)O + NO to HNO_(3) + 3H^(+)`
(ii) `S + O_(2) to SO_(2)`
(iii) `2HNO_(3)+ 2SO_(2) to H_(2)O + NO + NO_(2) + 2SO_(3)`
(IV) `SO_(3) + H_(2)O to H_(2)SO_(4)`
Net reaction:
`2SO_(2)+ 2H_(2)O + O_(2) overset(NO) to 2H_(2)SO_(4)`


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