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1(current)

Q. No.

Q1:

The correct relation between dissociation constants of a di-basic acid is:

1. $K a_{1} = K a_{2}$

2. $K a_{1} > K a_{2}$

3. $K a_{1} < K a_{2}$

4. $K a_{1} = \frac{1}{K a_{2}}$

Subtopic: Ionisation Constant of Acid, Base & Salt | Acids & Bases - Definitions & Classification |

71%

Level 2: 60%+

AIPMT - 2000

Hints

Q2:

At 25 ºC, the dissociation constant of a base, BOH, is 1.0 × 10^–12. The concentration of hydroxyl ions in 0.01M aqueous solution of the base would be:

1.	1.0 × 10^–6 mole L^–1	2.	1.0 × 10^–7 mole L^–1
3.	2.0 × 10^–6 mole L^–1	4.	1.0 × 10^–5 mole L^–1

Subtopic: Ionisation Constant of Acid, Base & Salt |

75%

Level 2: 60%+

AIPMT - 2005

Hints

1(current)

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