Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
AIIMS 2012
Exam
AIIMS
Year
2012
Subject
Chemistry
Chapter
Electrochemistry

AIIMS 2012 · Chemistry · Electrochemistry

For Zn^ 2+ Zn, E^ =-0.76 ~V then EMF of the cell Zn / Zn^ 2+ (1...

For Zn2+∣Zn,E∘=−0.76 V\mathrm{Zn}^{2+} \mid \mathrm{Zn}, E^{\circ}=-0.76 \mathrm{~V} then EMF of the cell Zn/Zn2+(1M)∣2H+(1M)∣H2\mathrm{Zn} / \mathrm{Zn}^{2+}(1 \mathrm{M})\left|2 \mathrm{H}^{+}(1 \mathrm{M})\right| \mathrm{H}_2 (1 atm) will be

Options

  1. A−0.76 V-0.76 \mathrm{~V}
  2. B0.76 V0.76 \mathrm{~V}
  3. C0.38 V0.38 \mathrm{~V}
  4. D−0.38 V-0.38 \mathrm{~V}

Correct answer

B. 0.76 V0.76 \mathrm{~V}

Step-by-step solution

 cell ∘=∘ right −∘ left ∵\stackrel{\circ}{\text{ cell }}=\frac{\circ}{\text{ right }}-\frac{\circ}{\text{ left }} \because cell =0−(0−0.76)=0.76=0-(0-0.76)=0.76V\mathrm{ V}
Practice Electrochemistry on Quantrex Academy →

More from Electrochemistry

Calculate the conductivity of 0.025 M BaCl_2 solution if the molar conductivity of salt… MHT CET Medical 2026Calculate the equilibrium constant at 25\ ^ ^ ∘ C for the cell reaction, Ni(s) + Cu^ 2+… MHT CET Medical 2026Calculate the time required in second to deposit 5.85 g Ni from NiCl_2 solution by… MHT CET Medical 2026Which of the following cell reactions is exhibited by fuel cell? MHT CET Medical 2026Which of the following types of cells is used for electroplating? MHT CET Medical 2026Which of the following acts as a cathode in a dry cell? MHT CET Medical 2026What is the Standard cell potential of a cell constituted by two electrodes, A (E^0_… MHT CET Medical 2026How long (in minutes) must a 2\ A current be passed through AgNO_3 solution to deposit… MHT CET Medical 2026 Full Electrochemistry list All AIIMS PYQs