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Q. No.In a qualitative analysis, \(Bi^{3+}\) is detected by the appearance of a precipitate of \(BiO(OH)(s)\).
Calculate pH when the following equilibrium exists at 298 K :
\(BiO(OH)(s) \rightleftharpoons BiO^+(aq) + OH^-(aq)\),
\(K = 4 \times 10^{-10}\)
(Given : \(\log 2 = 0.3010\))
1. 4.699
2. 8.714
3. 9.301
4. 5.286
Calculate pH when the following equilibrium exists at 298 K :
\(BiO(OH)(s) \rightleftharpoons BiO^+(aq) + OH^-(aq)\),
\(K = 4 \times 10^{-10}\)
(Given : \(\log 2 = 0.3010\))
1. 4.699
2. 8.714
3. 9.301
4. 5.286
Subtopic: Â pH calculation |
 54%
Level 3: 35%-60%
NEET - 2026
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At 298 K, a certain buffer solution contains equal concentrations of X- and HX, Kb for X- is 10-10.
What is the pH of this buffer solution ?
1. 2
2. 10
3. 4
4. 6
What is the pH of this buffer solution ?
1. 2
2. 10
3. 4
4. 6
Subtopic: Â pH calculation |Â Buffer |
 62%
Level 2: 60%+
NEET - 2026
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Please attempt this question first.
What is the pH of a solution prepared by mixing equal volumes (50 mL each) of 0.10 M sodium acetate and 0.01 M acetic acid?
[Given pKa of CH3COOH = 4.57]
1. 2.57
2. 5.57
3. 3.57
4. 4.57
Subtopic: Â pH calculation |
 66%
Level 2: 60%+
NEET - 2022
Hints
If 0.01 M acetic acid solution is 1% ionised, then pH of this acetic acid solution is:
| 1. | 3 | 2. | 2 |
| 3. | 4 | 4. | 1 |
Subtopic: Â pH calculation |
 70%
Level 2: 60%+
NEET - 2022
Hints
Find out the solubility product \(K_{sp}\) of \(Ca \left(OH\right)_{2}\) if the pH of its saturated solution is 9:
| 1. | \(0 . 5 \times \left(10\right)^{- 10}\) | 2. | \(0 . 5 \times \left(10\right)^{- 15}\) |
| 3. | \(0 . 25 \times \left(10\right)^{- 10}\) | 4. | \(0 . 125 \times \left(10\right)^{- 15}\) |
Subtopic: Â pH calculation |
 67%
Level 2: 60%+
NEET - 2019
Hints
Subtopic: Â pH calculation |
 83%
Level 1: 80%+
NEET - 2019
Hints
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