Chemistry, asked by Sukhdeep1904, 3 months ago

Chemival test for sulphur dioxide

Answers

Answered by renumalik

Answer:

A simple test for sulphur dioxide is to pass the gas over a piece of filter paper soaked in acidified Na2Cr2O7. The paper goes from an orange colour for the Cr6+ to a green colour for Cr3+.

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