- 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: Â Common Ion Effect |
 55%
Level 3: 35%-60%
Hints
Given below are two statements:
| Assertion (A): | On addition of NH4Cl to NH4OH solution, pH decreases but remains greater than 7. |
| Reason (R): | Addition of \(NH^+_4\) ion decreases ionization of NH4OH thus [OH-] is decreased, hence pH decreases. |
| 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. | Both (A) and (R) are False. |
Subtopic: Â Common Ion Effect |
 80%
Level 1: 80%+
Hints
Given below are two statements:
| Assertion (A): | The ionization of NH4OH is suppressed by adding NH4Cl. |
| Reason (R): | Ionization is suppressed due to common ion effect. |
| 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. | Both (A) and (R) are False. |
Subtopic: Â Common Ion Effect |
 92%
Level 1: 80%+
Hints
- 1(current)
Q. No.
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