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 H₂P${\mathrm{O}}_4^{-}$ is HP${\mathrm{O}}_4^{2-}$.

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

In which of the following will the solubility of AgCl be the minimum?

Which of the following salts will give the highest pH in the water?                   

1. KCl           

2. NaCl         

3. Na₂CO₃     

4. CuSO₄

An aqueous solution of which salt has the lowest pH?

1. NaOH                 

2. NH₄Cl

3. Na₂CO₃             

4. NaCl

Consider the reaction,

CH₃COOH + C₂H₅OH $\rightleftharpoons$CH₃COOC₂H₅ + H₂O. 

One mole each of CH₃COOH and C₂H₅OH are heated in the presence of little concentrated H₂SO₄. On equilibrium:

1. 1mole of ethyl acetate is formed

2. 2 mole of ethyl acetate are formed

3. 1/2 mole of ethyl acetate is formed

4. 2/3 mole of ethyl acetate is formed

The value of $∆$H for the reaction,

   X₂(g) + 4Y₂(g) $\rightleftharpoons$2XY₄ (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

Salting out action of the soap is based on:

1. Complex ion formation

2. Common ion effect

3. Solubility product

4. Acid-base neutralization

Which is not an acid salt?

1. NaH₂PO₂                                   

2. NaH₂PO₃

3. NaH₂PO₄                                   

4.  NaHSO₃

 The following equilibria are given

 N₂ + 3H₂ $\rightleftharpoons$ 2NH₃,      K₁

N₂ + O₂ $\rightleftharpoons$ 2NO,          K₂

H₂ + $\frac{1}{2}$O₂ $\rightleftharpoons$ H₂O,       K₃

The equilibrium constant of the reaction, 2NH₃ + $\frac{5}{2}$O₂ $\rightleftharpoons$ 2NO + 3H₂O in terms of  K₁, K₂ and K₃ is  

1. $K_{\mathit{1}}{K}_{\mathit{3}}^{\mathit{3}}\mathit{/}{K}_{\mathit{2}}$                       

2. $K_2{K}_{\mathit{3}}^{\mathit{3}}\mathit{/}{K}_1$

3. K₁K₂K₃                            

4. K₁K₂/K₃ 

The pK_a for acid A is greater than pK_a for acid B. The strong acid is:

1. Acid A                                           

2. Acid B

3. Are equally strong                         

4. None of the above