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Give a Chemical Test to Distinguish Between the Following Gases. H2 and O2

Give a chemical test to distinguish between the following gases.

CO₂ and SO₂

One Line Answer

Carbon dioxide	sulphur dioxide
Litmus test: It turns moist blue litmus faint red.	Litmus test: It turns moist blue litmus red and finally bleaches it. This bleaching is temporary.
The gas has no effect on filter paper dipped in acidified K₂Cr₂O₇ or KMnO₄.	It has no effect on lead acetate paper (Distinct from H₂S). This test distinguishes it from H₂S.