The correct representation for the solubility product constant of Ag2CrO4 is:

1. [Ag+]2[CrO42-]                             

2. [Ag2+][CrO42-]

3. [2Ag+][CrO42-]                             

4. [2Ag+]2[CrO42-]

Subtopic:  Solubility Product |
 51%
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pH of a saturated solution of Ba(OH)2 is 12. The value of solubility product Ksp of Ba(OH)2 is

1. 3.3 x 10-7                         

2. 5.0 x 10-7

3. 4.0 x 10-6                         

4.  5.0 x 10-6

Subtopic:  Solubility Product |
 60%
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At a given temperature the Kc for the reaction,

PCl5 (g PCl3 (g) + Cl2 (g) is 2.4 x10-3. At the same temperature, the Kc for the reaction

PCl3 (g) + Cl2 (g PCl5 (g)  is :

1. 2.4x10-3           

2. -2.4 x10-3

3. 4.2 x10          

4.  4.8 x10-2

Subtopic:  Kp, Kc & Factors Affecting them |
 78%
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HI was heated in a sealed tube at 440°C till the equilibrium was reached. At this point, HI was found to be 22 % decomposed. The equilibrium constant for this dissociation is :

1. 0.28 2. 0.08
3. 0.02 4. 1.99
Subtopic:  Introduction To Equilibrium |
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28 g N2 and 6g H2 were mixed. At equilibrium 17 g NH3 was formed. the mass of N2 and H2 of equilibrium are respectively:

1. 11 g, zero                             

2. 1 g, 3 g

3. 14 g, 3 g                                 

4. 11 g, 3 g

Subtopic:  Introduction To Equilibrium |
 75%
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The strongest acid among the following is:          

1. H2SO4           

2. HClO3       

3. HClO4         

4. H2SO3 

Subtopic:  Acids & Bases - Definitions & Classification |
 70%
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pH for the solution of salt undergoing anionic hydrolysis (say CH3COONa) is given by:

1. pH = 12[pKw + pKa + log c]

2. pH = 12[pKw + pKa - log c]

3. pH = 12[pKw + pKb - log c]

4. none of the above

Subtopic:  Salt Hydrolysis & Titration |
 64%
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Which can act as an acidic buffer?

a. NH4Cl + NH4OH
b. CH3COOH + CH3COONa
c. 40 mL of 0.1 M NaCN + 20 mL of 0.1 M HCl


1. Both a and b
2. Both b, and c
3. All are buffer solution
4. Both a, and c

Subtopic:  Buffer |
 70%
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The following equilibrium exists in an aqueous solution 

CH3COOH H+ + CH3COO- . If dilute HCl is added to this solution:

1. the equilibrium constant will increase

2. the equilibrium constant will decrease

3. acetate ion concentration will increase

4. acetate ion concentration will decrease

Subtopic:  Ionisation Constant of Acid, Base & Salt |
 71%
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The solubility product of CuS, CdS and HgS are 10-31, 10-44, 10-54 respectively. The solubility of these sulphides are in the order

1. CdS>HgS> CuS

2. HgS> CdS>CuS

3. CdS>CuS>HgS

4. CuS>CdS>HgS

Subtopic:  Solubility Product |
 82%
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