Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
BITSAT2016ChemistryElectrochemistryActual

The EMF of the cell Tl / Tl ⁺(0.001 M ) | Cu ²⁺(0.01 M ) / Cu is 0.83 . The cell EMF can be increased by

Options

  1. AIncreasing the concentration of Tl ⁺ ions.
  2. BIncreasing the concentration of Cu ²⁺ ions.
  3. CIncreasing the concentration of Tl ⁺ and Cu ²⁺ ions.
  4. DNone of these

Correct answer

B. Increasing the concentration of Cu ²⁺ ions.

Step-by-step solution

The oxidation potential 1 Concentration of ions and reduction potential concentration of ions. The cell voltage can be increased by decreasing the concentration of ions around anode or by increasing the concentration of ions around cathode

Practice Electrochemistry on Quantrex Academy →

More from Electrochemistry

The pH of 0.5 L of 1.0 M NaCl solution after electrolysis for 965 s using 5.0 A current is, 2024Calculate the molarity of a solution containing 5 g of NaOH dissolved in the product of H ₂- O ₂ fuel cell operated at 1 A current for 595.1 hours. (Assume F =96500 C / mol of elec 2024When the same quantity of electricity is passed through the aqueous solutions of the given electrolytes for the same amount of time, which metal will be deposited in maximum amount 2024Which of the following solutions of KCl will have the highest value of specific conductance? 2023Given that E_ O ₂ / H ₂ O ^ =+1.23 ~V ; aligned & E_ S ₂ O ₈²⁻ / SO ₄²⁻ ^ =2.05 ~V ; E_ Br ₂ / Br ⁻ ^ =+1.09 ~V & E_ Au ³⁺ / Au ^ =+1.4 ~V aligned The strongest oxidising agent is 2023The conductivity of a weak acid HA of concentration 0.001 ~mol ~L ⁻¹ is 2.0 10⁻⁵ ~S ~cm ⁻¹ . If _ m ^ ( HA )=190 ~S ~cm ^2 ~mol ⁻¹ , the ionization constant ( K _ a ) of HA is equa 2023Electrode potential data are given below: Fe ⁺³( aq )+ e ⁻ Fe ⁺²( aq ) ; E ^ =+0.77 ~V Al ³⁺( aq )+3 e ⁻ Al _ ( s ) ; E ^ =-1.66 ~V Br ₂( aq )+2 e ⁻ 2 Br ⁻( aq ) ; E ^ =+1.08 ~V Ba 2023Using the standard electrode potential, find out the pair between which redox reaction is not feasible. E^ values Fe ³⁺ / Fe ²⁺=+0.77 ; I ₂ / I ⁻=+054 Cu ²⁺ / Cu =+0.34 ; Ag ⁺ / Ag 2022 Full Electrochemistry list All BITSAT PYQs