Find the two Brønsted bases in the following equilibrium:

HC₂O₄⁻ + PO₄³⁻ ⇌ HPO₄²⁻ + C₂O₄²⁻

1. HC₂O₄⁻ and PO₄³⁻
2. HPO₄²⁻ and C₂O₄²⁻
3. HC₂O₄⁻ and HPO₄²⁻
4. PO₄³⁻ and C₂O₄²⁻

Find the values of Kₚ/Kc for the following gaseous reactions:

I. 2A + 3B ⇌ 2C
II. 2A ⇌ 4B
III. A + B + 2C ⇌ 4D

The solubility product constant (Ksp) of Fe(OH)₂ at 25°C is 1.6 × 10⁻¹⁴. The molar solubility of Fe(OH)₂ in a solution of pH 8 is:

1. 0.06

2. 0.016

3. 0.01

4. 0.16

The conjugate acid of azide ion is:

1. NH₃                 2. N₃H

3. N₂H₄                4. ${\mathrm{N}}_2^{-}$

The pH of 0.1 M solution of anilium chloride is (K_a of ${\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{NH}}_3^{+}$ = 10^-6)

(1) 3.5

(2) 3

(3) 4.5

(4) none of these

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

Find the salt that undergoes appreciable hydrolysis in water.

1. CH₃COONa                                     

2. KNO₃

3. NaCl                                               

4. K₂SO₄