Related InterviewSolutions

• Why does conductivity of a solution decrease on dilution of the solution?
• Why does the conductivity of a solution decrease with dilution.
• The mass deposited at an electrode is directly proportional to ……….. (a) atomic weight (b) equivalent weight (c) molecular weight (d) atomic number
• Which electrolyte is used in Leclanche cell? (a) ZnSO4 + CuSO4 (b) NH4CI + ZnCl2(c) NaCI + CuSO4(d) MnSO4 + MnO2
• Which one of the following is used as cathode in Mercury button cell? (a) Zinc (b) Copper (c) Zinc amalgamated with mercury (d) HgO mixed with graphite
• Which one of the following is used in cellular phones, Laptop computers and in digital camera?(a) Mercury button cell (b) Lithium – ion battery (c) H2O2 fuel cell (d) Leclanche cell
• The formula of rust is ……….. (a) Fe2O3(b) Fe2O3 .xH2O (c) FeO (d) FeO.xH2O
• Which one of the following is an example for electrochemical process? (a) Chrome plating (b) Rusting of iron (c) Galvanisation (d) All the above
• The one which decreases with dilution is ………… (a) conductance (b) specific conductance (c) equivalent conductance (d) molar conductance
• A button cell used in watches functions as following.Zn(s) + Ag2O(s) + H2O(l) → 2Ag(s) + Zn2+(aq) + 2OH(aq).If half cell potentials are Zn2+(aq) + 2e- → Zn(s) E° = – O.76VAg2O(s) + H2O(l) + 2e- 2Ag(s) + 2OH-(aq) E0 = 0.34VThe cell potential will be ……….. (a) 1.10V (b) 0.42V (c) 0.84V (d) 1.34V