Electrochemistry questions
1808 published questions with worked solutions.
- According to Kohlrausch's law, the limiting value of molar conductivity of an electrolyte, A_2B is
- Two different electrolytic cells filled with molten Cu(NO_3)_2 and molten Al(NO_3)_3 , respectively are connected in series. When...
- When same quantity of electricity is passed for half an hour, the amount of Cu and Cr deposited are respectively 0.375 g and 0.30...
- Which of the following electrolytic solutions has the least specific conductance?
- The value of ^ _ eq for NH_4Cl , NaOH and NaCl are respectively 149.74, 248.1 and 126.4 ^ -1 ,cm^2 ,equiv^ -1 . The value of ^ _...
- The molar conductivities of KCl, NaCl and KNO_3 are 152, 128 and 111 S ,cm^2 ,mol^ -1 , respectively. What is the molar...
- The specific conductance ( ) of an electrolyte of 0.1 N concentration is related to equivalent conductance ( ) by the following...
- Electrolysis of dilute aqueous NaCl solution was carried out by passing 10 mA current. The time required to liberate 0.01 mole of...
- How many Coulomb of electricity are required for the oxidation of one mole of water to dioxygen?
- The equivalent conductivity of a solution containing 2.54 g of CuSO_4 per L is 91.0 ^ -1 ,cm^2 ,eq^ -1 . Its conductivity would be
- Which of the statements about solutions of electrolytes is not correct?
- Solubility of a sparingly soluble salt S., specific conductance , and the equivalent conductance _0 are related as
- Select the correct statement for _m = E^ _m - A C^ 1/2 .
- How many coulombs are required in order to reduce 12.3 g of nitrobenzene to aniline?
- Consider the following statements, I. Q = It II. Charge is required for reduction or reduction depends on the stoichiometry of...
- Which of the following reaction is preferred at anodes during the electrolysis of H_2SO_4 at higher concentration?
- Which of the following statement(s) is/are false for electrolytic cell?
- At 298 K, the standard reduction potentials are 1.51 V for MnO_4^-|Mn^ 2+ , 1.36 V for Cl_2|Cl^- , 1.07 V for Br_2|Br^- and 0.54...
- The two half-cell reaction of an electrochemical cell is given as Ag^+ + e^- Ag ; E^ _ Ag^+/Ag = -0.3995 V Fe^ 2+ Fe^ 3+ + e^- ;...
- For Cr_2O_7^ 2- + 14H^+ + 6e^- 2Cr^ 3+ + 7H_2O ; E^ = 1.33 V. At 298 K, [ Cr_2O_7^ 2- ] = 4.5 millimole, [ Cr^ 3+ ] = 15...
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