Doubts
Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents
Sign in to save progress →
Doubts
Sign in

Electrochemistry question

2025 · 24 Jan · Shift 2 · Q7
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Chemistry
  4. /Electrochemistry
  5. /2025 · 24 Jan · Shift 2 · Q7

Electrochemistry question

2025 · 24 Jan · Shift 2 · Q7

JEE MainChemistryElectrochemistryMCQ+4 / −1
Based on the data given below : ECr2O72−/Cr3+∘=1.33 VECl2/Cl(−)∘=1.36 VEMnO4−/Mn2+0=1.51 VECr3+/Cr∘=−0.74 V\begin{array}{ll} \mathrm{E}_{\mathrm{Cr}_2 \mathrm{O}_7^{2-} / \mathrm{Cr}^{3+}}^{\circ}=1.33 \mathrm{~V} & \mathrm{E}_{\mathrm{Cl}_2 / \mathrm{Cl}^{(-)}}^{\circ}=1.36 \mathrm{~V} \\ \mathrm{E}_{\mathrm{MnO}_4^{-} / \mathrm{Mn}^{2+}}^0=1.51 \mathrm{~V} & \mathrm{E}_{\mathrm{Cr}^{3+} / \mathrm{Cr}}^{\circ}=-0.74 \mathrm{~V} \end{array}ECr2​O72−​/Cr3+∘​=1.33 VEMnO4−​/Mn2+0​=1.51 V​ECl2​/Cl(−)∘​=1.36 VECr3+/Cr∘​=−0.74 V​ the strongest reducing agent is :
  1. A
    Cl−\mathrm{Cl}^{-}Cl−
  2. B
    MnO4−\mathrm{MnO}_4^{-}MnO4−​
  3. C
    Cr\mathrm{Cr}Cr
  4. D
    Mn2+\mathrm{Mn}^{2+}Mn2+
PreviousNext

More from Electrochemistry

  • Given below is the plot of the molar conductivity vs  concentration ​ for KCl in aqueous solution. If, for the higher concentration of KCl solution, the resistance of the conductivity cell is 100Ω, then the… Includes diagram2025 · Numerical
  • Electrolysis of 600 mL aqueous solution of NaCl for 5 min changes the pH of the solution to 12 . The current in Amperes used for the given electrolysis is ​ . (Nearest integer).2025 · Numerical
  • The standard reduction potential values of some of the p-block ions are given below. Predict the one with the strongest oxidising capacity.2025 · MCQ
  • For a Mg | Mg2+ (aq) || Ag+ (aq) | Ag the correct Nernst Equation is :2025 · MCQ
  • The molar conductivity of a weak electrolyte when plotted against the square root of its concentration, which of the following is expected to be observed?2025 · MCQ
  • O2​ gas will be evolved as a product of electrolysis of : (A) an aqueous solution of AgNO3​ using silver electrodes. (B) an aqueous solution of AgNO3​ using platinum electrodes. (C) a dilute solution of H2​SO4​…2025 · MCQ
  • Match List - I with List - II : Choose the correct answer from the options given below : Includes table2025 · MCQ
  • The potential for the given half cell at 298 K is (-) ​×10−2 V ​2H(aq)+​+2e−⟶H2​( g)[H+]=1M,PH2​​=2 atm​…2024 · Numerical