jee_main_2026_22_january_evening - Electrochemistry Topics

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QUESTION #67 Standard Reduction Potentials and Reducing Strength
Consider the following reduction processes: Al³⁺ + 3e^- arrow Al(s), E⁰ = -1.66 V Fe³⁺ + e^- arrow Fe²⁺, E⁰ = +0.77 V Co³⁺ + e^- arrow Co²⁺, E⁰ = +1.81 V Cr³⁺ + 3e^- arrow Cr(s), E⁰ = -0.74 V The tendency to act as reducing agent decreases in the order:
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QUESTION #71 Nernst Equation and Anodic Oxygen Evolution
Consider the following electrochemical cell: Pt O₂(g) (1 bar) HCl(aq) M²⁺(aq, 1.0 M) M(s) The pH above which, oxygen gas would start to evolve at anode is ____ (nearest integer). Given: E⁰M²⁺/M = 0.994 V, E⁰O₂/H₂O = 1.23 V standard reduction potential and (RT)/(F)(2.303) = 0.059 V at the given condition
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JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%) | JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%)

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