The pH of 0.1M monobasic acid is 4.50. The value of pKa of the monobasic acid is-

1. 6. 3
2. 7.4
3. 8.0
4. 9.0

Subtopic:  Ionisation Constant of Acid, Base & Salt |
 56%
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The ionization constant of the hypochlorous acid is 2.5 × 10–5. The concentration of hypochlorous acid 0.08 M. The percent dissociation of HOCl is-

1. 2.56 %
2. 1.21 %
3. 1. 76 %
4. 2.21 %

Subtopic:  Ionisation Constant of Acid, Base & Salt |
 71%
From NCERT
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The ionization constant of ammonia is 1.77 × 10–5. The pH of a 0.05M of
ammonia solution is 11. The ionization constant of the conjugate acid of
ammonia is:

1. 2.
44 × 10–9

2. 6.14 × 10–12

3. 1.24 × 10–14

4. 5.64 × 10–10
Subtopic:  Ionisation Constant of Acid, Base & Salt |
 63%
From NCERT
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