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Chemistry - Electrochemistry

Practise 41 VITEEE previous year questions on Electrochemistry, compiled from papers spanning 2006 to 2024. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty VITEEE tests.

Electrochemistry has been asked in 18 of the 18 years of VITEEE papers analysed (2006–2024), with 41 questions in all. 49% of them were easy, 37% moderate and 15% tough. Most of its questions came from 2022, with 4 questions that year. In the last three years (2022–2024) it had 8 questions across 3 papers, about 2.7 per paper.

The chapter's 3 topics are not weighted equally: Cells and Electrode Potential, Nernst Equation (27 questions, 66%), Conductance and Conductivity (13 questions, 32%), and Commercial Cells and Batteries (1 question, 2%) have been asked the most. Cells and Electrode Potential, Nernst Equation has also led over the last five years, with 8 questions. Cells and Electrode Potential, Nernst Equation has produced the most tough questions (6).

  1. 14.5 g of aluminium (Atomic mass 27 amu ) is deposited at cathode from solution by a certain quantity of electric charge. The volume of hydro2024Cells and Electrode Potential, Nernst Equation
  2. 2How long should water be electrolysed by passing through 100 amperes current so that oxygen released can completely burn 27.66 g of diborane2024Cells and Electrode Potential, Nernst Equation
  3. 3The resistance of \(1 {~N}\) solution of acetic acid is \(250 {ohm}\), when measured in a cell of cell constant \(1.15 {~cm}^{-1}\). The equ2023Conductance and Conductivity
  4. 4\( {Zn}\) amalgam is prepared by electrolysis of aqueous \( {ZnCl}_2\) using \( {Hg}\) cathode ( \(9 {gm}\) ). How much current is to be pas2023Cells and Electrode Potential, Nernst Equation
  5. 5Which one of the following reaction occurs at the cathode?2022Cells and Electrode Potential, Nernst Equation
  6. 6Equivalent conductances of \( {NaCl}, {HCl}\) and \( {CH}_3 {COONa}\) at infinitedilution are \(126.45,426.16 {and}\) \(91 {dhm}^{-1} {~cm}^2022Conductance and Conductivity
  7. 7The standard e.m.f. of a galvanic cell involving cell reaction with \(n=2\) is found to be \(0.295 {~V}\) at \(25^{ } {C}\). The equilibrium2022Cells and Electrode Potential, Nernst Equation
  8. 8If \(0.5 {amp}\) current is passed through acidified silver nitrate solution for 100 minutes. The mass of silver deposited on cathode, is (e2022Cells and Electrode Potential, Nernst Equation
  9. 9To deposit of copper by electrolysis of aqueous cupric sulphate solution, the amount of electricity required (in coulombs) is2021Cells and Electrode Potential, Nernst Equation
  10. 10A galvanic cell is set up from electrodes and Electrode Electrode Which of the following statements is false ?2021Cells and Electrode Potential, Nernst Equation
  11. 11The electrode potentials for and are and , respectively. The value of will be:2019Cells and Electrode Potential, Nernst Equation
  12. 12Standard cell voltage for the cell is . If the cell is to exhibit , the value of should be antilog of2018Cells and Electrode Potential, Nernst Equation
  13. 13The resistance of solution of an electrolyte was found to be at using a conductivity cell with a cell constant of . The value of equivalent 2018Conductance and Conductivity
  14. 14The standard reduction potential for is . Calculate the reduction potential at for the above couple.2017Cells and Electrode Potential, Nernst Equation
  15. 15The emf of a particular voltaic cell with the cell reaction is . The maximum electrical work of this cell when of is consumed.2017Cells and Electrode Potential, Nernst Equation
  16. 16For hydrogen-oxygen fuel cell, the cell reaction is If , then emf of this cell is2016Cells and Electrode Potential, Nernst Equation
  17. 17Given, cell and . The value of will be given by the slope of which line in the figure2015Cells and Electrode Potential, Nernst Equation
  18. 18is2014Cells and Electrode Potential, Nernst Equation
  19. 19The equivalent conductivity of a solution containing of per is . Its conductivity would be2014Conductance and Conductivity
  20. 20The equivalent conductance of silver nitrate solution at for an infinite dilution was found to be equiv . The transport number of ions in ve2013Conductance and Conductivity
  21. 21For the cell reaction cell is . If is , what is the value of2013Cells and Electrode Potential, Nernst Equation
  22. 22A constant current of 30 A is passed through an aqueous solution of for a time of . What is the volume of gas at STP produced?2013Cells and Electrode Potential, Nernst Equation
  23. 23Which of the following expressions correctly represents the equivalent conductance at infinite dilution of Given that and are the equivalent2012Conductance and Conductivity
  24. 24The equivalent conductances of two ions at infinite dilution in water at are given below The equivalent conductance (in /equiv) of at infini2011Conductance and Conductivity
  25. 25The EMF of the cell, Sn at is2011Cells and Electrode Potential, Nernst Equation
  26. 26The equivalent conductance at infinite dilution of a weak acid such as2010Conductance and Conductivity
  27. 27The number of Faradays needed to reduce equivalents of to Cu metal will be2010Cells and Electrode Potential, Nernst Equation
  28. 28Which one of the following cells can convert chemical energy of and directly into electrical energy?2010Commercial Cells and Batteries
  29. 29The standard Gibb's free energy change, is related to equilibrium constant, as2010Cells and Electrode Potential, Nernst Equation
  30. 30At , the molar conductances at infinite dilution for the strong electrolytes and are and respectively, in is2009Conductance and Conductivity
  31. 31The molar conductivities of , and are 152,128 and respectively. What is the molar conductivity of2008Conductance and Conductivity
  32. 32The electrochemical cell stops working after sometime because:2008Cells and Electrode Potential, Nernst Equation
  33. 33The amount of electricity required to produce one mole of copper from copper sulphate solution will be2008Cells and Electrode Potential, Nernst Equation
  34. 34How long (in hours) must a current of amperes be maintained to electroplate of calcium from molten ?2007Cells and Electrode Potential, Nernst Equation
  35. 35For strong electrolytes the plot of molar conductance vs is2007Conductance and Conductivity
  36. 36If the molar conductance values of and at infinite dilution are respectively and then that of is (in )2007Conductance and Conductivity
  37. 37The standard reduction potentials at for the following half reactions are given against each2007Cells and Electrode Potential, Nernst Equation
  38. 38For a cell reaction to be spontaneous, the standard free energy change of the reaction must be2006Cells and Electrode Potential, Nernst Equation
  39. 39Equivalent conductance of an electrolyte containing at infinite dilution is . If is replaced by what is the value of equivalent conductance?2006Conductance and Conductivity
  40. 40The tendencies of the electrodes made up of , and to release electrons when dipped in their respective salt solutions decrease in the order2006Cells and Electrode Potential, Nernst Equation
  41. 41The electrode reaction that takes place at the anode of fuel cell is2006Cells and Electrode Potential, Nernst Equation

Frequently Asked Questions

1.How many questions are available for Electrochemistry?

This chapter includes 41 questions compiled from VITEEE papers spanning 2006 to 2024.

2.Are these questions only from VITEEE, or from other exams too?

These are VITEEE questions specifically for the Electrochemistry chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.

3.Is Electrochemistry an important chapter for VITEEE Chemistry?

Electrochemistry has appeared in 18 of the 18 years of VITEEE papers covered here, with 41 questions across 18 papers - about 2 per paper it appears in.

4.What is the difficulty level of Electrochemistry questions in VITEEE?

Of the 41 questions analysed for this chapter, 49% are easy, 37% moderate and 15% tough. 2022 had the most, with 4 questions.

5.Which topics in Electrochemistry should I focus on?

These topics have carried the most weightage in Electrochemistry:

  • Cells and Electrode Potential, Nernst Equation - 27 questions (66%)
  • Conductance and Conductivity - 13 questions (32%)
  • Commercial Cells and Batteries - 1 question (2%)
  • Cells and Electrode Potential, Nernst Equation has produced the most tough questions (6).
6.Is Electrochemistry's weightage in VITEEE going up or down?

Across all 18 papers analysed, Electrochemistry has averaged about 2.3 questions per paper. In the last three years (2022–2024), that average has risen, at about 2.7 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.