p-Block elementsEasy

Question

Sulphur trioxide can be obtained by which of the following reaction:

Options

A.H₂SO₄ + PCl₅

B.CaSO₄ + C

C.Fe₂(SO₄)₃

D.S + H₂SO₄

Solution

Fe₂(SO₄)₃

3SO₃ + Fe₂O₃

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