On reaction with dilute H2SO4, which of the following salts will give out a gas that turns an acidif — Qualitative and Quantitative Analysis Chemistry Question
Question
On reaction with dilute H2SO4, which of the following salts will give out a gas that turns an acidified dichromate paper green ?
Answer: B,C,D
💡 Solution & Explanation
Na2S and FeS release H2S, and ZnSO3 releases SO2 upon reaction with dilute H2SO4. Both H2S and SO2 can reduce acidified dichromate to green Cr3+. Na2CO3 releases CO2, which does not.
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