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9.2 Nitric Acid — Chemistry STD 10 — Question

ICSE BoardEnglish MediumSTD 10Chemistry9.2 Nitric Acid2 Marks
Question
Why is freshly prepared ferrous sulphate solution used in the ring test?
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Answer

Freshly prepared ferrous sulphate solution is used in the ring test otherwise. Ferrous sulphate undergoes aerial oxidation and converts to ferric sulphate.

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