Question 3Tests for nitric acidNitric acidComplete and balance the equations32. Heat on nitric acidHNO3 ⟶ H2O + ............... [g]+ ............... [g][reddish brown fumes evolved]33. Heat on copper and conc. HNO3Cu + HNO3 ⟶ ............... + ............... + ............... [g][dense reddish brown fumes evolved - blue solution remains]34. Brown ring testFeSO4 + H2SO4 + ............... ⟶ ............... + ............... + NO[FeSO4 + NO ⟶ ...............][A brown ring of nitroso ferrous sulphate is formed at the junction of the two liquids]

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Nitric acidComplete and balance the equations32. Heat on nitric acid4HNO3→Δ2H2O+4NO2[g]+O2[g]4	ext{HNO}_3 \xrightarrow{\Delta} 2	ext{H}_2	ext{O} + \bold{4NO}_\bold{2}[g] + \bold{O}_\bold{2} [g]4HNO3​Δ​2H2​O+4NO2​[g]+O2​[g][reddish brown fumes evolved]33. Heat on copper and conc. HNO3Cu+4HNO3→ΔCu(NO3)2+2H2O+2NO2[g]	ext{Cu} + 4	ext{HNO}_3 \xrightarrow{\Delta} \bold{Cu(NO}_3)_2 + \bold{2H}_2\bold{O} + \bold{2NO}_2[g]Cu+4HNO3​Δ​Cu(NO3​)2​+2H2​O+2NO2​[g][dense reddish brown fumes evolved - blue solution remains]34. Brown ring test6FeSO4 + 3H2SO4 + 2HNO3 ⟶ 3Fe2(SO4)3 + 4H2O +2NO[FeSO4 + NO ⟶ FeSO4.NO][A brown ring of nitroso ferrous sulphate is formed at the junction of the two liquids]

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]

Nitric acid	Complete and balance the equations
32. Heat on nitric acid	$4\text{HNO}_3 \xrightarrow{\Delta} 2\text{H}_2\text{O} + \bold{4NO}_\bold{2}[g] + \bold{O}_\bold{2} [g]$ [reddish brown fumes evolved]
33. Heat on copper and conc. HNO₃	$\text{Cu} + 4\text{HNO}_3 \xrightarrow{\Delta} \bold{Cu(NO}_3)_2 + \bold{2H}_2\bold{O} + \bold{2NO}_2[g]$ [dense reddish brown fumes evolved - blue solution remains]
34. Brown ring test	6FeSO₄ + 3H₂SO₄ + *2HNO₃* ⟶ *3Fe₂(SO₄)₃* + *4H₂O* +2NO [FeSO₄ + NO ⟶ *FeSO₄.NO*] [A brown ring of nitroso ferrous sulphate is formed at the junction of the two liquids]

Study of Compounds — Nitric Acid — Question 3

Question 3