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Electrochemistry — JEE Practice
29 practice questions across 2 topics. Filter by difficulty, solve topic-wise MCQs, and review detailed solutions.
2 Topics29 Questions
Electrochemical Cells & Nernst Equation(15 Qs)
easy (5)
medium (5)
hard (5)
Q1The EMF of concentration cell Ag|Ag⁺(0.01M)||Ag⁺(0.1M)|Ag is:Q2How long (seconds) will it take to deposit 10.8 g of Ag from AgNO₃ using 5A current?Q3Lead storage battery uses the reaction:Q4The molar conductivity of CH₃COOH at infinite dilution can be found using Kohlrausch law and data for:Q5For the cell Zn|Zn²⁺(1M)||Cu²⁺(1M)|Cu, E° = 1.1V. If [Cu²⁺] = 0.01M, E becomes:
Electrochemical Cells & EMF(14 Qs)
easy (5)
medium (5)
Q1For the Daniel cell: Zn|Zn²⁺||Cu²⁺|Cu, if E°(Zn²⁺/Zn) = −0.76V and E°(Cu²⁺/Cu) = +0.34V, the cell EMF is:Q2Nernst equation at 298 K for a cell is E = E° − (0.059/n) log Q. If n = 2 and Q = 100, E = E° −:Q3The relationship between ΔG° and E°_cell is:Q4During charging of a lead storage battery:Q5Molar conductivity of a solution at infinite dilution can be calculated using:
hard (4)
Q1If E°_cell = 0.5 V and n = 2 at 298 K, the equilibrium constant K is approximately:Q2Faraday's second law states that masses of substances deposited by the same charge are proportional to:Q3The conductivity of a 0.1M KCl solution is 0.0129 S/cm. If cell constant is 1.5 cm⁻¹, the measured conductance is:Q4In a concentration cell with electrodes of the same metal dipped in solutions of concentrations C₁ and C₂ (C₁ > C₂), the EMF is:
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