Gamma Question Bank for Medical Chemistry>Chapter 17 - Electrochemistry>Assignment>Q 9

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A $100 watt$ , $110 volt$ lamp is connected in series with an electrolytic cell containing ${CdSO}_{4}$ solution, the weight of Cd deposited by the current for $10 hrs$ is (At. wt. of $Cd = 112.4$ )

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Important Questions on Electrochemistry

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Gamma Question Bank for Medical Chemistry>Chapter 17 - Electrochemistry>Assignment>Q 10

The two platinum electrodes fitted in a conductance cell are

1.5 cm

apart while the cross sectional area of each electrode is

0.75 {cm}^{2}

. What is the cell constant?

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Gamma Question Bank for Medical Chemistry>Chapter 17 - Electrochemistry>Assignment>Q 11

A current of

2.0 A

is passed for

5

hours through a molten metal salt deposits

22.2 g

of metal (At. mass:

177

). The oxidation state of the metal in metal salt is

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Gamma Question Bank for Medical Chemistry>Chapter 17 - Electrochemistry>Assignment>Q 12

A current of

0.965

ampere is passed through

500 ml

of

0.2 M

solution of

{ZnSO}_{4}

for

10

minutes. The molarity of

{Zn}^{2 +}

after deposition of zinc is

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Gamma Question Bank for Medical Chemistry>Chapter 17 - Electrochemistry>Assignment>Q 13

Electrolysis of

H_{2} {SO}_{4}

(conc.) gives the following at anode

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Gamma Question Bank for Medical Chemistry>Chapter 17 - Electrochemistry>Assignment>Q 14

In

SHE

, the

pH

of the acid solution should be

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Gamma Question Bank for Medical Chemistry>Chapter 17 - Electrochemistry>Assignment>Q 15

E.M.F. of

Ni (s) |{Ni}^{2 +} (aq)| |{Cu}^{2 +} (aq)| Cu (s)

cell can be increased by

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Gamma Question Bank for Medical Chemistry>Chapter 17 - Electrochemistry>Assignment>Q 16

For given cell;

Zn |{Zn}^{+ 2} (C_{1})| |{Zn}^{+ 2} (C_{2})| Zn; ΔG

is negative if

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Gamma Question Bank for Medical Chemistry>Chapter 17 - Electrochemistry>Assignment>Q 17

The emf of the cell,

Zn |{Zn}^{2 +}| {Ag}^{+}| Ag

is independent of