ICSE Class 10 Chemistry
Question 8 of 62
Study of Compounds — Sulphuric Acid — Question 2
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Question Question 2
Chemical properties of sulphuric acid
| Sulphuric Acid | Complete and balance the equations |
|---|---|
| As an acid [dilute] | |
| 4. Forms hydronium ions in aq. soln. | H2SO4 + 2H2O ⟶ ............... + SO42- |
| Reaction with | |
| 5. Active metal [zinc] | Zn + H2SO4 ⟶ ............... + ............... [g] |
| 6. Base [Sodium oxide] | Na2O + H2SO4 ⟶ ............... + ............... |
| 7. Base [Sodium hydroxide] | NaOH + H2SO4 ⟶ ............... + ............... |
| 8. Carbonate [Potassium carbonate] | K2CO3 + H2SO4 ⟶ ............... + ............... + ............... [g] |
| 9. Sulphite [Sodium sulphite] | Na2SO3 + H2SO4 ⟶ ............... + ............... + ............... [g] |
| 10. Bisulphite [Sodium bisulphite] | NaHSO3 + H2SO4 ⟶ ............... + ............... + ............... [g] |
| 11. Sulphide [Iron [II] sulphide] | FeS + H2SO4 ⟶ ............... + ............... |
| As a dibasic acid | |
| 12. Basicity is two | H2SO4 ⇌ ............... + SO42- |
| 13. Dissociates in two steps | H2SO4 ⇌ ............... + ............... HSO4- ⇌ ............... + SO42- |
| 14. Forms two types of salts - acid salt - Normal salt | NaOH + H2SO4 ⟶ ............... + ............... 2NaOH + H2SO4 ⟶ ............... + ............... |
| As a non - volatile acid [conc.] Displaces volatile acid from salt | |
| 15. Sodium chloride | NaCl + H2SO4 ⟶ ............... + ............... |
| 16. Sodium nitrate | NaNO3 + H2SO4 ⟶ ............... + ............... |
| As an oxidising agent [conc. acid] Oxidation of | |
| 17. Carbon | C + H2SO4 ⟶ ............... + H2O + ............... |
| 18. Sulphur | S + H2SO4 ⟶ ............... + H2O |
| 19. Phosphorous | P + H2SO4 ⟶ ............... + H2O + ............... |
| 20. Copper | Cu + H2SO4 ⟶ ............... + H2O + ............... |
| 21. Zinc | Zn + H2SO4 ⟶ ............... + H2O + ............... |
| 22. Hydrogen iodide | HI + H2SO4 ⟶ ............... + H2O + ............... |
| 23. Hydrogen sulphide | H2S + H2SO4 ⟶ ............... + H2O + ............... |
| As a dehydrating agent [conc. acid] | |
| 24. Glucose | C6H12O6 ⟶ ............... + H2O |
| 25. Sucrose | C12H22O11 ⟶ ............... + H2O |
| 26. Cellulose | [C6H10O5]n ⟶ ............... + H2O |
| 27. Formic acid | H.COOH ⟶ ............... + H2O |
| 28. Oxalic acid | H2C2O4 ⟶ ............... + ............... + H2O |
| 29. Hydrated copper sulphate | CuSO4.5H2O ⟶ ............... + H2O |
| Sulphuric Acid | Complete and balance the equations |
|---|---|
| As an acid [dilute] | |
| 4. Forms hydronium ions in aq. soln. | H2SO4 + 2H2O ⟶ 2H3O+ + SO42- |
| Reaction with | |
| 5. Active metal [zinc] | Zn + H2SO4 ⟶ ZnSO4 + H2 [g] |
| 6. Base [Sodium oxide] | Na2O + H2SO4 ⟶ Na2SO4 + H2O |
| 7. Base [Sodium hydroxide] | 2NaOH + H2SO4 ⟶ Na2SO4 + 2H2O |
| 8. Carbonate [Potassium carbonate] | K2CO3 + H2SO4 ⟶ K2SO4 + H2O + CO2 [g] |
| 9. Sulphite [Sodium sulphite] | Na2SO3 + H2SO4 ⟶ Na2SO4 + H2O + SO2 [g] |
| 10. Bisulphite [Sodium bisulphite] | 2NaHSO3 + H2SO4 ⟶ Na2SO4 + 2H2O + 2SO2 [g] |
| 11. Sulphide [Iron [II] sulphide] | FeS + H2SO4 ⟶ FeSO4 + H2S |
| As a dibasic acid | |
| 12. Basicity is two | H2SO4 ⇌ 2H+ + SO42- |
| 13. Dissociates in two steps | H2SO4 ⇌ H+ + HSO4- HSO4- ⇌ H+ + SO42- |
| 14. Forms two types of salts - acid salt - Normal salt | NaOH (insufficient) + H2SO4 ⟶ NaHSO4 + H2O 2NaOH (excess) + H2SO4 ⟶ Na2SO4 + 2H2O |
| As a non - volatile acid [conc.] Displaces volatile acid from salt | |
| 15. Sodium chloride | NaCl + H2SO4 [conc.] ⟶ NaHSO4 + HCl (<200°C) |
| 16. Sodium nitrate | NaNO3 + H2SO4 [conc.] ⟶ NaHSO4 + HNO3 (<200°C) |
| As an oxidising agent [conc. acid] Oxidation of | |
| 17. Carbon | C + 2H2SO4 [conc.] ⟶ CO2 + 2H2O + 2SO2 |
| 18. Sulphur | S + 2H2SO4 [conc.] ⟶ 3SO2 + 2H2O |
| 19. Phosphorous | 2P + 5H2SO4 [conc.] ⟶ 2H3PO4 + 2H2O + 5SO2 |
| 20. Copper | Cu + 2H2SO4 [conc.] ⟶ CuSO4 + 2H2O + SO2 |
| 21. Zinc | Zn + 2H2SO4 [conc.] ⟶ ZnSO4 + 2H2O + SO2 |
| 22. Hydrogen iodide | 2HI + H2SO4 [conc.] ⟶ I2 + 2H2O + SO2 |
| 23. Hydrogen sulphide | H2S + H2SO4 [conc.] ⟶ S + 2H2O + SO2 |
| As a dehydrating agent [conc. acid] | |
| 24. Glucose | C6H12O6 + H2SO4 [conc.] ⟶ 6C + 6H2O |
| 25. Sucrose | C12H22O11 + H2SO4 [conc.] ⟶ 12C + 11H2O |
| 26. Cellulose | [C6H10O5]n + H2SO4 [conc.] ⟶ 6[C]n + 5[H2O]n |
| 27. Formic acid | H.COOH + H2SO4 [conc.] ⟶ CO + H2O |
| 28. Oxalic acid | H2C2O4 + H2SO4 [conc.] ⟶ CO + CO2 + H2O |
| 29. Hydrated copper sulphate | CuSO4.5H2O + H2SO4 [conc.] ⟶ CuSO4 + 5H2O |