Alpha Question Bank for Medical: Chemistry>Chapter 9 - Electrochemistry>Exercise 1>Q 15

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What is the potential of a cell containing two hydrogen electrodes the negative one in contact with $10^{- 8}$

${MH}^{+}$ and positive one in contact with $0.025 {MH}^{+} \ left (P_{H_{2}}$ is same in both electrodes)?

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Important Questions on Electrochemistry

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Alpha Question Bank for Medical: Chemistry>Chapter 9 - Electrochemistry>Exercise 1>Q 16

The e.m.f. of the cell Ag |{Ag}^{*} (0.1 M) ‖ {Ag}^{+} (1 M)| Ag at 298K is

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Alpha Question Bank for Medical: Chemistry>Chapter 9 - Electrochemistry>Exercise 1>Q 17

Calculate the electrode potential at $298 K$ for $Zn ∣ {Zn}^{2 +}$ electrode in which the concentration of zinc ions is $0.001 M$ and $E °_{Zn | {Zn}^{2 +}}$ is $0.74 V$ .

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Alpha Question Bank for Medical: Chemistry>Chapter 9 - Electrochemistry>Exercise 1>Q 18

E_{{Al}^{3 +} / Al}^{o} = - 1.66 V

and

Ksp

of

Al (OH)_{3} = 1.0 \times 10^{- 33} .

The reduction potential of the above couple at

pH = 14

is:

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Alpha Question Bank for Medical: Chemistry>Chapter 9 - Electrochemistry>Exercise 1>Q 19

Given

E_{{C r}^{3 +} / C r}^{°} = - 0.72 V, E_{{F e}^{2 +} / F e}^{°} = - 0.42 V .

The potential for the cell

C r | {C r}^{3 +} (0.1 M) | | {F e}^{2 +} (1 M) | F e

is :

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Alpha Question Bank for Medical: Chemistry>Chapter 9 - Electrochemistry>Exercise 1>Q 20

In a concentration cell,

Zn | {Zn}^{2 +} (1.0 M) | | {Zn}^{2 +} (0.15 M) | Zn

, as the cell discharges

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Alpha Question Bank for Medical: Chemistry>Chapter 9 - Electrochemistry>Exercise 1>Q 21

Which pair of electrolytes could not be distinguished by the products of electrolysis using inert electrodes?

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Alpha Question Bank for Medical: Chemistry>Chapter 9 - Electrochemistry>Exercise 1>Q 22

On electrolysing a solution of dilute

H_{2} {SO}_{4}

between platinum electrodes, the gas evolved at the anode is:

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Alpha Question Bank for Medical: Chemistry>Chapter 9 - Electrochemistry>Exercise 1>Q 23

The concentration of

{Cu}^{2 +}

on electrolysing

{CuSO}_{4 (aq)}

solution using the

Cu

electrode: