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

Electrochemistry question

2010 · Shift 0 · Q21
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Chemistry
  4. /Electrochemistry
  5. /2010 · Shift 0 · Q21

Electrochemistry question

2010 · Shift 0 · Q21

JEE MainChemistryElectrochemistryMCQ+4 / −1
The correct order of EM2+/MoE_{{M^{2 + }}/M}^oEM2+/Mo​ values with negative sign for the four successive elements Cr, Mn, Fe and Co is :
  1. A
    Mn > Cr > Fe > Co
  2. B
    Cr > Fe > Mn > Co
  3. C
    Fe > Mn > Cr > Co
  4. D
    Cr > Mn > Fe > Co
PreviousNext

More from Electrochemistry

  • In a fuel cell methanol is used as fuel and oxygen gas is used as an oxidizer. The reaction is CH3​OH(l) + 3/2O2​ → CO2​ (g) + 2H2​O (l) At 298K standard Gibb’s energies of formation for CH3​OH(l), H2​O(l) and CO2​ (g)…2009 · MCQ
  • Given : EFe3+/Feo​= -0.036V; EFe2+/Feo​= -0.439 V The value of standard electrode potential for the change, Fe3+ (aq) + e-→ Fe2+ (aq) will be2009 · MCQ
  • Given ECr3+/Cro​= -0.72 V; EFe2+/Feo​ = -0.42V, The potential for the cell Cr | Cr3+ (0.1M) || Fe2+ (0.01 M) | Fe is2008 · MCQ
  • The cell, Zn | Zn2+ (1M) || Cu2+ (1M) | Cu(Ecello​= 1.10V) was allowed to be completely discharged at 298 K. The relative concentration of Zn2+ to Cu2+[[Cu2+][Zn2+]​]…2007 · MCQ
  • The equivalent conductances of two strong electrolytes at infinite dilution in H2​O (where ions move freely through a solution) at 25oC are given below: ∧CH3​COONao​= 91.0 S cm2/equiv ∧HClo​= 426.2 S cm2/equiv…2007 · MCQ
  • The molar conductivities ∧NaOAco​ and ∧HClo​ and at infinite dilution in water at 25oC are 91.0 and 426.2 Scm2/mol respectively. To calculate ∧HOAco​ , the additional value required is2006 · MCQ
  • Resistance of a conductivity cell filled with a solution of an electrolyte of concentration 0.1 M is 100 Ω. The conductivity of this solution is 1.29 S m–1. Resistance of the same cell when filled with 0.2 M of the same solution is…2006 · MCQ
  • Given the data at 25oC, Ag + I− → AgI + e- , Eo = 0.152 V Ag → Ag+ + e-, Eo = -0.800 V What is the value of log Ksp for AgI? (2.303 RT/F = 0.059 V)2006 · MCQ