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

Electrochemistry question

2011 · Shift 0 · Q23
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Chemistry
  4. /Electrochemistry
  5. /2011 · Shift 0 · Q23

Electrochemistry question

2011 · Shift 0 · Q23

JEE MainChemistryElectrochemistryMCQ+4 / −1
The reduction potential of hydrogen half cell will be negative if :
  1. A
    p(H2H_2H2​) = 1 atm and [H+H^+H+] = 1.0 M
  2. B
    p(H2H_2H2​) = 1 atm and [H+H^+H+] = 2.0 M
  3. C
    p(H2H_2H2​) = 2 atm and [H+H^+H+] =1.0 M
  4. D
    p(H2H_2H2​) = 2 atm and [H+H^+H+] =2.0 M
PreviousNext

More from Electrochemistry

  • The Gibbs energy for the decomposition of Al2​O3​ at 500oC is as follows : 32​Al2​O3​→34​Al+O2​, Δr​G = + 966 kJ mol–1 The potential difference needed for electrolytic reduction of Al2​O3​ at 500oC…2010 · MCQ
  • The correct order of EM2+/Mo​ values with negative sign for the four successive elements Cr, Mn, Fe and Co is :2010 · MCQ
  • 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