Practice question

Given: What is the standard ll potential for a galvanic ll where Sn(s) is oxidized to Sn²⁺(aq) and Cu²⁺(aq) is reduced to Cu(s), given their standard reduction potentials are -0.14 V and 0.34 V respectively? Formula: E_{ll⁰ = E_{cathode⁰ - E_{anode⁰. Substitution & Calculation: For Sn(s) → Sn²⁺(aq) + 2e⁻ (anode) and Cu²⁺(aq) + 2e⁻ → Cu(s) (cathode): E_{ll⁰ = 0.34 - (-0.14) = 0.48 V . Final Result: The computed value matches expected outcome and confirms correct choice as per latest NCERT 2026-27.