Related InterviewSolutions

• Balance the equation by ion electron method. PbO2 + Cl– → ClO– + [Pb(OH)3]– in basic solution.
• Define half – cell.
• Balance the chemical equation H2 + O2 → H2O
• (i) Suggest a scheme of classification of the following redox reactions:(a) N2(g) + O2(g) → 2NO(g)(b) 2Pb(NO3)2(s) → 2PbO(s) + 2 NO2(g) + \(\frac{1}{2}\)O2(g)(c) NaH(s) + H2O(I) → NaOH(aq) + H2(g)(d) 2NO2(g) + 2OH– (aq) → NO2– (aq) + NO3– (aq) + H2O(I)(ii) Why do the following reactions proceed differently?Pb3O4 + 8HCI → 3PbCI2 + CI2 + 4H2OAndPb3O4 + 4HNO3 → 2Pb(NO3)2 + PbO2 + 2H2O
• Which of the following redox couple is stronger oxidizing agent?a. Cl2 (E0 = 1.36 V) and Br2 (E0 = 1.09 V) b. MnO4Θ(E0 = 1.51 V) and Cr2O72Θ (E0 = 1.33 V)
• Which of the following redox couple is stronger reducing agent?a. Li (E0 = – 3.05 V) and Mg(E0 = – 2.36 V)b. Zn(E0 = – 0.76 V) and Fe(E0 = – 0.44 V)
• Define a redox couple.
• Describe the steps involved in balancing redox reactions by ion electron method (Half reaction method).
• Name two methods used to balance redox reactions.
• Define the term redox couple.