NCERT/Class 12/Chemistry/Electrochemistry

Electrochemistry

Class 12 · Chemistry

50 questions13 easy29 medium8 hard

Sample Questions

Q1.If 0.5 A current is passed for 1000 seconds through a CuSO₄ solution, the mass of copper deposited is: (M of Cu = 63.5 g/mol, n = 2, F = 96500 C/mol)

  • A0.165 g
  • B0.330 g
  • C1.65 g
  • D3.30 g

Q2.The standard hydrogen electrode (SHE) has a potential of:

  • A0.00 V (by convention)
  • B+1.00 V
  • C-1.00 V
  • D+0.34 V

Q3.The cell notation for a Daniell cell is written as:

  • AZn(s)|Zn²⁺(aq)||Cu²⁺(aq)|Cu(s)
  • BCu(s)|Cu²⁺(aq)||Zn²⁺(aq)|Zn(s)
  • CZn(s)|Cu²⁺(aq)||Zn²⁺(aq)|Cu(s)
  • DCu²⁺|Cu||Zn|Zn²⁺

Q4.The conductance of electrolytes increases with temperature because:

  • AViscosity of the solution decreases, allowing faster ion movement
  • BViscosity increases, slowing ions
  • CNumber of ions decreases
  • DIon-ion interactions increase

Q5.The standard electrode potential E°(Cu²⁺/Cu) = +0.34 V and E°(Zn²⁺/Zn) = -0.76 V. The standard EMF of the Daniell cell is:

  • A1.10 V
  • B0.42 V
  • C-1.10 V
  • D0.34 V

Q6.This is a sample question to preview what you'll get in the full practice test...

  • A. Option one
  • B. Option two
  • C. Option three
  • D. Option four
Create a test to practice all 50 questions →

Concepts Covered

0.0592/nAC currentCuSO4 electrolysisDaniell cellDaniell cell calculationDebye-Hückel-Onsager equationEMF calculationF2 electrode potentialFaraday's constantFaraday's first lawFaraday's law calculationFaraday's second lawH2 productionKohlrausch's lawKohlrausch's law applicationKohlrausch's law calculationLeclanché dry cellNaCl molar conductivityNernst equationNernst equation at 25°CNernst equation at equilibriumSHE referenceWheatstone bridgeacetic acidammonium chlorideanode and cathodeanode oxidationanode productbattery electrolytebattery typescathode productcathode reactioncathodic depositioncathodic protectioncell EMFcell EMF = 0cell constantcell diagramcell notationcell reactioncharge calculationcharge of electronschemical and electrical energyconcentrationconcentration cellconcentration effectconductance and temperatureconductance measurementconductivityconductivity calculationconductivity relationshipcopper depositioncopper refiningcorrosioncorrosion inhibitorscorrosion preventiondegree of ionizationdirect electricity generationdischarge reactionelectrical neutralityelectrochemical processelectrochemical serieselectrochemistry definitionelectrode potentialelectrode reactionselectrolysiselectrolysis applicationelectrolysis of molten NaClelectrolytic solutionselectroplatingenergy conversionequilibrium constantequilibrium in cellsequivalent weightfuel cellgalvanic cellgalvanic cellsgalvanic vs electrolytic cellhydrogen electrode potentialhydrogen fuel cellindirect calculationinfinite dilutionion mobilityionic circuitionic conductivitieslead storage batterylimiting ionic conductivitiesmass calculationmass depositionmercury cellmolar conductivitymolar conductivity and dilutionnon-rechargeableoxidation reductionoxidizing agentoxidizing agentspH effectprimary batteryprimary vs secondary batteryprotective layerreaction quotientrechargeabilityreference electroderesistanceresistivityrusting mechanismsacrificial anodesalt bridgesilver depositionsimplified formspecific resistancespontaneityspontaneous vs non-spontaneousstandard EMFstandard conditionsstandard electrode potentialstandard hydrogen electrodestandard reduction potentialstrong electrolyte conductivitystrong electrolytesstrongest oxidizing agentviscositywater electrolysisweak electrolyte conductivityweak electrolytesΔG° and E° relationshipΔG°-K-E° relationshipΛm/Λ°mΛ°m calculation√c dependence

Ready to practice?

Create a timed test from 50 questions in Electrochemistry. Pick your difficulty, get instant scores.

Start Practice Test