The pKb of dimethylamine and pka of acetic acid are 3.27 and 4.77 respectively at T (K).
The correct option for the pH of dimethylammonium acetate solution is:

1. 7.75 2. 6.25
3. 8.50 4. 5.50

Subtopic:  Salt Hydrolysis & Titration |
 61%
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NEET - 2021
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If the solubility of a M2S salt is 3.5 × 10-6 mol litre-1 , then the solubility product of M2S will be:

1.  1.7 × 10-6 mollitre-3

2. 1.7 × 10-16 mol3 litre-3

3.  1.7 × 10-18 mol3 litre-3

4. 1.7 × 10-12 mol3 litre-3

Subtopic:  Solubility Product |
 71%
From NCERT
AIPMT - 2001
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The ionization constant of CH3COOH is 1.7 × 10-5 and the concentration of Hions is 3.4 × 10-4. The initial concentration of CH3COOH will be:
1.  3.4 × 10-4
2.  3.4× 10-3
3.  6.8 × 10-4
4.  6.8 × 10-3

Subtopic:  Kp, Kc & Factors Affecting them |
 65%
From NCERT
AIPMT - 2001
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The following equilibria are given:

\(N_{2} \ + \ 3H_{2} \ \rightleftharpoons \ 2NH_{3} \)   K1
\(N_{2} \ + \ O_{2} \ \rightleftharpoons \ 2NO\)   K2
\(H_{2} \ + \ \frac{1}{2}O_{2} \ \rightleftharpoons \ H_{2}O\)   K3


The equilibrium constant of the reaction
\(2NH_{3} \ + \ \frac{5}{2}O_{2} \ \rightleftharpoons \ 2NO \ + \ 3H_{2}O\) in terms of K1, K2 and K3 is:

1. K1.K2.K3
2. \(\mathrm{\frac{K_{1}K_{2}}{K_{3}}}\)
3. \(\mathrm{\frac{K_{1}K_{3}^{2}}{K_{3}}}\)
4. \(\mathrm{\frac{K_{2}K_{3}^{3}}{K_{1}}}\)

Subtopic:  Introduction To Equilibrium |
 82%
From NCERT
AIPMT - 2003
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The solubility product of AgI at 25 ºC is 1.0 × 10–16 mol2 L–2. The solubility of AgI in 10–4 N solution of KI at 25 ºC is approximately (in mol L–1):

1. 1.0×10-16

2. 1.0×10-12

3. 1.0×10-10

4. 1.0×10-8

Subtopic:  Solubility Product |
 83%
From NCERT
AIPMT - 2003
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The reaction quotient (Q) for the reaction:

N2(g)+3H2(g)2NH3(g)

is given by Q=[NH3]2[N2][H2]3. The reaction will proceed from right to left if:
1. Q = KC
2. Q < KC
3. Q > KC
4. Q = 0

(where KC is the equilibrium constant)

Subtopic:  Kp, Kc & Factors Affecting them |
 74%
From NCERT
AIPMT - 2003
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A compound among the following that cannot be classified as a protonic acid is:

1. B(OH)3 2. PO(OH)3
3. SO(OH)2 4. SO2(OH)2
Subtopic:  Acids & Bases - Definitions & Classification |
 79%
From NCERT
AIPMT - 2003
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If a solution of 0.1 N NH4OH and 0.1 N NH4Cl has pH 9.25, then pKb of NH4OH is:

1. 9.25

2. 4.75

3. 3.75

4. 8.25

Subtopic:  pH calculation |
 68%
From NCERT
AIPMT - 2002
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The compound with the highest pH among the following is:

1. CH3COOK

2. Na2CO3

3. NH4Cl

4. NaNO3

Subtopic:  Salt Hydrolysis & Titration |
 56%
From NCERT
AIPMT - 2002
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If the solubility of MX2 – type electrolytes is 0.5 × 10–4 Mole/lit. then Ksp of electrolytes will be:

1. 5×10-12

2. 25×10-10

3. 1×10-13

4. 5×10-13

Subtopic:  Solubility Product |
 76%
From NCERT
AIPMT - 2002
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