1. The equilibrium constant for the following reaction
(E°Ce+4/Ce+3 = 1.44 V; E°Fe+3/Fe+2 = 0.68 V)
Fe+2 + Ce+4 ⇌ Fe+3 + Ce+3 is
Answer: 7.2 × 10-12
2. The correct order of equivalent conductance at infinite dilution of NaCl, LiCl and KCl is
Answer: KCl > NaCl > LiCl
3. The rusting of iron takes place as follows
2H+ + 2e- + 
O2 → H2O; E° = +1.23 V
Fe+2 + 2e- → Fe; E° = -0.44 V
The ∆G° for the rusting of iron is
Answer: -322 KJ/Mole
4. The molar conductivity of 0.1 M acetic acid solution is 5.2 S cm2 mol-1 and degree of dissociation is 1.33%. The molar conductivity of this acid at infinite dilution is
Answer: 390.97
5. If the values of ^° of Ba(OH)2, BaCl2 and NH4Cl are 520, 280, 130 Ohm-1 cm2 equiv-1 respectively, the ^° of NH4OH in same units is
Answer: 250
6. The ratio of ionic conductance (^0) to Ionic mobility (U0) is
Answer: Faraday
7. Anode and Cathode in lead storage battery are respectively
Answer: Lead & Lead dioxide
8. m-1 is unit of
Answer: cell constant, wave number
9. The reaction that occurs at cathode during the electrolysis of AgNO3 solution between silver electrodes is
Answer: Ag+ + e-→ Ag
10. emf of the cell
11. Cr2O7-2 + I-→ I 2 + Cr+3
E°cell = 0.79 V, E° Cr2O7-2 = 1.33V, E°I2= ?
Answer: + 0.54 V
12. Tin cans are used to transport conc. HNO3 because
Answer: Tin is passive after initial reaction
13. Cd + ZnSO4 → X + Y where X & Y are
Answer: No reaction
14. E° values of three metalic cations A, B and C are 0.52, -3.03 and -1.18 V respectively. The correct order of reducing power of the metals is
Answer: B > C > A
