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Electrochemistry · 2004 · Shift 0

6 Chemistry questions from this JEE Main paper
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Electrochemistry · 2004 · Shift 0

6 Chemistry questions from this JEE Main paper

  1. Q35.In a hydrogen – oxygen fuel cell, combustion of hydrogen occurs to :
    Chemistry · Electrochemistry · MCQ
  2. Q36.Consider the following Eo values EFe3+/Fe2+o​= 0.77 V; ESn2+/Sno​= -0.14 V Under standard conditions the potential for the reaction Sn(s) + 2Fe3+(aq) → 2Fe2+(aq) + Sn2+(aq) is :
    Chemistry · Electrochemistry · MCQ
  3. Q37.The standard e.m.f of a cell, involving one electron change is found to be 0.591 V at 25oC. The equilibrium constant of the reaction is (F = 96,500 C mol-1: R = 8.314 JK-1 mol-1)
    Chemistry · Electrochemistry · MCQ
  4. Q38.The limiting molar conductivities Λ° for NaCl, KBr and KCl are 126, 152 and 150 S cm2 mol-1 respectively. The Λ° for NaBr is
    Chemistry · Electrochemistry · MCQ
  5. Q39.In a cell that utilises the reaction Zn(s) + 2H+ (aq) → Zn2+(aq) + H2​(g) addition of H2​SO4​ to cathode compartment, will
    Chemistry · Electrochemistry · MCQ
  6. Q40.The EM3+/M2+o​ values for Cr, Mn, Fe and Co are – 0.41, +1.57, + 0.77 and +1.97 V respectively. For which one of these metals the change in oxidation state form +2 to +3 is easiest?
    Chemistry · Electrochemistry · MCQ