Alpha Question Bank for Medical: Chemistry>Chapter 9 - Electrochemistry>Exercise 1>Q 98

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Silver is removed electrolytically from $200 ml$ , of a $0.1 N$ solution of ${AgNO}_{3}$ by a current of $0.1$ ampere. How long will it take to remove half of the silver from the solution:

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Important Questions on Electrochemistry

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Alpha Question Bank for Medical: Chemistry>Chapter 9 - Electrochemistry>Exercise 1>Q 99

The weight ratio of

Al

and

Ag

deposited using the same quantity of current is:

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Alpha Question Bank for Medical: Chemistry>Chapter 9 - Electrochemistry>Exercise 1>Q 100

When molten lithium chloride (

LiCl

) is electrolyzed, lithium metal is formed at the cathode. If current efficiency is

75 %

then how many grams of lithium are liberated when

1930 C

of charge pass through the cell: (Atomic.weight:

Li = 7

)

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Alpha Question Bank for Medical: Chemistry>Chapter 9 - Electrochemistry>Exercise 1>Q 101

At

18 ° C

the conductance of

H^{+}

and

{C H}_{3} {C O O}^{-}

at infinite dilution are 315 and 35 mho

{c m}^{2} {e q}^{- 1}

respectively. The equivalent conductivity of

{C H}_{3} C O O H

at infinite dilution is…..mho

{c m}^{2} {e q}^{- 1}

.

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Alpha Question Bank for Medical: Chemistry>Chapter 9 - Electrochemistry>Exercise 1>Q 102

The molar conductance at infinite dilution of

{AgNO}_{3}

,

AgCl

and

NaCl

are

116.5, 121.6

and

110.3

, respectively. The molar conductances of

{NaNO}_{3}

is

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Alpha Question Bank for Medical: Chemistry>Chapter 9 - Electrochemistry>Exercise 1>Q 103

At infinite dilution, the eq, conductances of

{CH}_{3} COONa

,

HCl

and

{CH}_{3} COOH

are

91, 426

and

391 mho {cm}^{2}

respectively at

25 ° C

, The eq. conductance of

NaCl

at infinite dilution will be:

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Alpha Question Bank for Medical: Chemistry>Chapter 9 - Electrochemistry>Exercise 1>Q 104

The value of

λ_{m}^{*}

for

{NH}_{4} Cl, NaOH

and

NaCl

are

129.8, 248.1

and

126.4 {ohm}^{- 1} {cm}^{2} {mol}^{- 1}

, respectively.
Calculate

λ_{m}^{*}

for

{NH}_{4} OH

solution (in

ohm {}^{- 1}{cm}^{2} {mol}^{- 1}

)

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Alpha Question Bank for Medical: Chemistry>Chapter 9 - Electrochemistry>Exercise 1>Q 105

The equivalent conductivity of

0.1 N {CH}_{3} COOH

at

25 ° C

is

80

and at infinite dilution

400 .

The degree of dissociation of

{CH}_{3} COOH

is:

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Alpha Question Bank for Medical: Chemistry>Chapter 9 - Electrochemistry>Exercise 1>Q 106

The specific conductance of a

0.01 M

solution of

KCl

is

0.0014 ohm {}^{- 1} {cm}^{- 1}

at

25 ° C

. Its equivalent conductance

({cm}^{2} ohm^{- 1} equiv^{- 1})

is: