Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEET2009ChemistryElectrochemistryActual

Given : (i) Cu ²⁺+2 e ⁻ Cu _ , E ^ =0.337 ~V (i) Cu ²⁺+ e ⁻ Cu ⁺, E ^ =0.153 ~V Electrode potential E ^ for the reaction, Cu ⁺+ e ⁻ Cu , will be :

Options

  1. A0.38 ~V
  2. B0.52 ~V
  3. C0.90 ~V
  4. D0.30 ~V

Correct answer

B. 0.52 ~V

Step-by-step solution

aligned & Cu ²⁺+2 e ⁻ Cu & E ^ =0.337 ~V & G =- nFE _ cell ^0 & =-2 F 0.337 & =-0.674 & Cu ²⁺ Cu ²⁺+ e ⁻ & E ^ =-0.153 ~V & G =+1 F 0.153 aligned Final aligned & Cu ⁺+ e ⁻ Cu & G =-0.52 ~V & G =- nFE _ cell ^ & E _ cell ^ =0.52 ~V aligned

Practice Electrochemistry on Quantrex Academy →

More from Electrochemistry

Calculate the conductivity of 0.025 M BaCl ₂ solution if the molar conductivity of salt at 25^ C is 325 ⁻¹ cm ^2 mol ⁻¹ . 2026Calculate the equilibrium constant at 25 ^ C for the cell reaction, Ni(s) + Cu ²⁺(1 M ) Ni ²⁺(1 M ) + Cu(s) if E^ _ cell is 0.592 V . 2026Calculate the time required in second to deposit 5.85 g Ni from NiCl ₂ solution by passing 10 A current (molar mass of Ni = 58.5 g mol ⁻¹ ) 2026Which of the following cell reactions is exhibited by fuel cell? 2026Which of the following types of cells is used for electroplating? 2026Which of the following acts as a cathode in a dry cell? 2026What is the Standard cell potential of a cell constituted by two electrodes, A (E^0_ A ^+/ A = 0.30 V ) and B (E^0_ B ^+/ B = +0.42 V ) ? 2026How long (in minutes) must a 2 A current be passed through AgNO ₃ solution to deposit 5.4 g Ag ? [Molar mass of Ag = 108 g mol ⁻¹ ] 2026 Full Electrochemistry list All NEET PYQs