- 1(current)
Q. No.Given below are two statements:
| Assertion (A): | The ionisation of hydrogen sulphide in water is low in the presence of hydrochloric acid. |
| Reason (R): | Hydrogen sulphide is a weak acid. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | (A) is False but (R) is True. |
Subtopic: Common Ion Effect |
55%
Level 3: 35%-60%
Hints
The solubility of A2X3 in pure water, assuming that neither kind of ion reacts with water is:
(solubility product of A2X3, Ksp = 1.1 × 10–23)
| 1. | 5.0 × 10–5 mol/L. | 2. | 1.0 × 10–5 mol/L |
| 3. | 1.0 × 10–4 mol/L | 4. | 5.0 × 10–4 mol/L. |
Subtopic: Common Ion Effect |
77%
Level 2: 60%+
Hints
Among the following solvents, silver chloride is most soluble in:
1. \(0.1 \mathrm{~mol} ~\mathrm{dm}^{-3}~ \mathrm{AgNO}_3 \text { solution }\)
2. \(0.1 \mathrm{~mol} ~\mathrm{dm}^{-3}~ \mathrm{HCl} \text { solution }\)
3. \(\mathrm{H}_2 \mathrm{O}\)
4. Aqueous ammonia
1. \(0.1 \mathrm{~mol} ~\mathrm{dm}^{-3}~ \mathrm{AgNO}_3 \text { solution }\)
2. \(0.1 \mathrm{~mol} ~\mathrm{dm}^{-3}~ \mathrm{HCl} \text { solution }\)
3. \(\mathrm{H}_2 \mathrm{O}\)
4. Aqueous ammonia
Subtopic: Common Ion Effect |
52%
Level 3: 35%-60%
Hints
- 1(current)
Q. No.
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