Which type of electrolytic are used in salt bridge? – InterviewSolution

InterviewSolution

1.	Which type of electrolytic are used in salt bridge?
Answer» Only those electrolytes for which cations and anions have nearly the same ionic mobilities (i.e. distance traveled by an ion per second under a potential gradient of one voltmeter) are used as electrolytes in the salt bridge. Thus KCl, KNO₃, K₄SO₄, and NH₄NO₃ are preferred over NaCl, NaNO₃ and Na₂SO₄.

Discussion

No Comment Found

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.