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 1 · Q18
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 1 · Q18

Electrochemistry question

2025 · 24 Jan · Shift 1 · Q18

JEE MainChemistryElectrochemistryMCQ+4 / −1
For the given cell Fe2+(aq)+Ag(aq)+→Fe3+(aq)+Ag(s)\mathrm{Fe}^{2+}(\mathrm{aq})+\mathrm{Ag}_{(\mathrm{aq})}^{+} \rightarrow \mathrm{Fe}^{3+}(\mathrm{aq})+\mathrm{Ag}_{(\mathrm{s})}Fe2+(aq)+Ag(aq)+​→Fe3+(aq)+Ag(s)​ The standard cell potential of the above reaction is Given: Ag++e−→AgEθ=xVFe2++2e−→FeEθ=yVFe3++3e−→FeEθ=zV\begin{array}{lr} \mathrm{Ag}^{+}+\mathrm{e}^{-} \rightarrow \mathrm{Ag} & \mathrm{E}^\theta=\mathrm{xV} \\ \mathrm{Fe}^{2+}+2 \mathrm{e}^{-} \rightarrow \mathrm{Fe} & \mathrm{E}^\theta=\mathrm{yV} \\ \mathrm{Fe}^{3+}+3 \mathrm{e}^{-} \rightarrow \mathrm{Fe} & \mathrm{E}^\theta=\mathrm{zV} \end{array}Ag++e−→AgFe2++2e−→FeFe3++3e−→Fe​Eθ=xVEθ=yVEθ=zV​
  1. A
    x+2y−3zx+2 y-3 zx+2y−3z
  2. B
    x+2yx+2 yx+2y
  3. C
    y−2xy-2 xy−2x
  4. D
    x+y−zx+y-zx+y−z
PreviousNext

More from Electrochemistry

  • Based on the data given below : ECr2​O72−​/Cr3+∘​=1.33 VEMnO4−​/Mn2+0​=1.51 V​ECl2​/Cl(−)∘​=1.36 VECr3+/Cr∘​=−0.74 V​…2025 · MCQ
  • 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