6 JEE Main 2004 Electrochemistry previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2004 previous-year questions from the Electrochemistry chapter of Chemistry. Each links to a full solution with a verified answer key. To see the whole chapter across all years, visit the Electrochemistry chapter hub.
In hydrogen - oxygen fuel cell, combustion of hydrogen occurs to
The standard e.m.f of a cell, involving one electron change is found to be 0.591 ~V at 25ⁱrc C. The equilibrium constan…
The limiting molar conductivities Λⁱrc for NaCl, KBr and KCl are 126,152 and 150 ~S ~cm² ~mol⁻¹ respectively. The Λⁱrc…
The EM⁺³ / M²⁺ⁱrc values for Cr, Mn, Fe and Co are -0.41,+1.57,+0.77 and +1.97 ~V respectively. For which one of these…
Consider the following Eⁱrc values aligned & EFe³⁺ / Fe²⁺ⁱrc=0.77 ~V \ & ESn²⁺ / Snⁱrc=-0.14 ~V aligned Under standard…
In a cell that utilises the reaction Zn(s)+2 H⁺(aq) Zn²⁺(aq)+H₂(~g) addition of H₂ SO₄ to cathode compartment, will