Chemistry

What compounds are required for the laboratory preparation of nitric acid.

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Potassium nitrate [nitre] or sodium nitrate [chile salt petre] and conc. sulphuric acid are the products required for the laboratory preparation of nitric acid.

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Tests for nitric acid
Nitric acid Complete and balance the equations
32. Heat on nitric acid HNO₃ ⟶ H₂O + …………… [g]+ …………… [g]
[reddish brown fumes evolved]
33. Heat on copper and conc. HNO₃ Cu + HNO₃ ⟶ …………… + …………… + …………… [g]
[dense reddish brown fumes evolved - blue solution remains]
34. Brown ring test FeSO₄ + H₂SO₄ + …………… ⟶ …………… + …………… + NO
[FeSO₄ + NO ⟶ ……………]
[A brown ring of nitroso ferrous sulphate is formed at the junction of the two liquids]

Chemistry

What compounds are required for the laboratory preparation of nitric acid.

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