Electrochemistry (Chapter Test - Medical) - Class 12 MCQ

Which of the following statement is incorrect about electrolysis of AgNO₃ using silver electrodes ?

A decinormal solution of NaCl has specific conductance k equal to 9.2 x 10^-3 S cm^-1. If ionic conductance of Na⁺ and Cl^- at the same temperature are 43 and 65 S cm^-2 mol^-1 respectively, the degree of dissociation is

Q. The molar conductivities of NaOH, NaCl and BaCl₂ at infinite dilution are 2⋅481×10⁻²Sm²mol⁻¹,1⋅265×10⁻²Sm²mol⁻¹ and 2⋅800×10⁻²Sm²mol⁻¹ respectively. The molar conductivity of Ba(OH)₂ at infinite dilution will be

Molar conductivity of a solution is 1.26 x 102 ohm^-1 cm² mol^-1. Its molarity is 0.01, its specific conductivity will be

If the solution of the CuSO₄ in which copper rod is immersed is diluted to 10 times, the electrode potential

2A^- + B₂ → 2B^- + A₂ :

2C^- + B₂ → No reaction

2D^- + A₂ → 2A^- + D_2,

_{Which of the following is correct?}

Which of the following is the electrolysis reaction when AgNO₃(aq) is electrolysed using a silver anode and a
platinum cathode ?

Which Nernst equation is true to find out the potential of non-standard electrochemical cell from the following?

The molar conductances of NaCI, HCI and CH₃COONa at infinite dilution are 126.45, 426.16 and 91 ohm^-1 cm2 mol–1 respectively. The molar conductance of CH₃COOH at infinite dilution is

E₁ , E₂ and E₃ are the emf values of the three galvanic cells respectively 

Which one of the following is true ?

If the half-cell reaction, A + e- ® A- has a large
negative reduction potential, it follows that

A standard hydrogen electrode has zero electrode potential because

When electric current is passed through a cell having an electrolyte, the positive ions move towards cathode
and the negative ions towards the anode. If the cathode is removed from the solution then