If the pressure is applied to the following equilibrium, Liquid  Vapour. The boiling temperature of the liquid:

1. will decrease                                 

2. will increase

3. may not change                           

4. will not change

Subtopic:  Introduction To Equilibrium |
 63%
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Which of the following statements is not true?

1. The pH of 10-8 N HCl is 8.

2. 96500 coulomb of electricity is passed through a CuSO4 solution deposit 1g of equivalent of Cu at cathode.

3. The conjugate base of H2PO4- is HPO42-.

4. pH + pOH = 14 for all aqueous solution.

Subtopic:  pH calculation |
 62%
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In which of the following will the solubility of AgCl be the minimum?

1. 0.1 M NaNO3 2. Water
3. 0.1 M NaCl 4. 0.1 M NaBr
Subtopic:  Common Ion Effect |
 76%
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Which of the following salts will give the highest pH in the water?                   

1. KCl           

2. NaCl         

3. Na2CO3     

4. CuSO4

Subtopic:  pH calculation |
 75%
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An aqueous solution of which salt has the lowest pH?

1. NaOH                 

2. NH4Cl

3. Na2CO3             

4. NaCl

Subtopic:  pH calculation |
 77%
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The value of H for the reaction,

   X2(g) + 4Y2(g2XY4 (g)

is less than zero. Formulation of XY4(g) will be favored at:                           

1. Low pressure and Low temperature

2. High temperature and Low pressure

3. High pressure and Low temperature

4. High temperature and High pressure

Subtopic:  Le Chatelier's principle |
 75%
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Salting out action of the soap is based on:

1. Complex ion formation

2. Common ion effect

3. Solubility product

4. Acid-base neutralization

Subtopic:  Solubility Product |
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Which is not an acid salt?

1. NaH2PO2                                   

2. NaH2PO3

3. NaH2PO4                                   

4.  NaHSO3

Subtopic:  Acids & Bases - Definitions & Classification |
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 The following equilibria are given

 N2 + 3H2  2NH3,      K1

N2 + O2  2NO,          K2

H212O2  H2O,       K3

The equilibrium constant of the reaction, 2NH352O2  2NO + 3H2O in terms of  K1, K2 and K3 is  

1. K1K33/K2                       

2. K2K33/K1

3. K1K2K3                            

4. K1K2/K3 

Subtopic:  Kp, Kc & Factors Affecting them |
 88%
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The pKa for acid A is greater than pKa for acid B. The strong acid is:

1. Acid A                                           

2. Acid B

3. Are equally strong                         

4. None of the above

Subtopic:  Acids & Bases - Definitions & Classification |
 84%
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