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Q. No.Match the entries in Column-I with Column-II:
1. A-q, B-p, C-r, D-s
2. A-p, B-q, C-r, D-s
3. A-s, B-q, C-r, D-p
4. A-q, B-s, C-r, D-q
| Column-I | Column-II | ||
| (A) | Weak electrolytes | (p) | Electron pair donor |
| (B) | Lewis base | (q) | Partial ionization |
| (C) | pKa | (r) | \(-log K_a\) |
| (D) | Indicator | (s) | Changes color at endpoint |
1. A-q, B-p, C-r, D-s
2. A-p, B-q, C-r, D-s
3. A-s, B-q, C-r, D-p
4. A-q, B-s, C-r, D-q
Subtopic: Ionisation Constant of Acid, Base & Salt | Acids & Bases - Definitions & Classification | Buffer |
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Level 1: 80%+
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In some solutions, the concentration of H3O+ remains constant even when small amounts of strong acid or strong base are added to them. These solutions are known as:
1. Ideal solution
2. Colloidal solution
3. True solution
4. Buffer solution
1. Ideal solution
2. Colloidal solution
3. True solution
4. Buffer solution
Subtopic: Buffer |
94%
Level 1: 80%+
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At what \(\mathrm{pH}\) will the concentrations of a weak acid and its conjugate base be equal, given that the \(\mathrm{p K_a}\) of the acid is 5.85?
1. 6.85
2. 5.85
3. 4.85
4. 7.85
Subtopic: Buffer |
88%
Level 1: 80%+
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The components of the buffer solution are 0.1 M HCN and 0.2 M NaCN. What is the pH of the solution?
[pKa = 9.3]
1. 9.6
2. 6.15
3. 2.0
4. 4.2
[pKa = 9.3]
1. 9.6
2. 6.15
3. 2.0
4. 4.2
Subtopic: Buffer |
88%
Level 1: 80%+
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