Question

which catalysts is used for converting so2into so3gas.​

Answer 1

$\huge\mathfrak\blue{Answer:-}$

Platinum (Pt)

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Answer 2

Explanation:

the formation of SO3 from so2 and O2 is catalyzed by iron oxide in the fly ash from a coal-fired boiler.the amount of SO3 produced is dependent on the iron oxide content of the fly ash and on the oxygen concentration of the gas stream.carbon in the fly ash significantly reduces the formation of SO3.