Alpha Question Bank for Medical: Chemistry>Chapter 9 - Electrochemistry>Exercise 1>Q 90

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How many faradays are required to reduce one mole of ${MnO}_{4}^{-}$ to ${Mn}^{2 +}$ :

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Important Questions on Electrochemistry

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Alpha Question Bank for Medical: Chemistry>Chapter 9 - Electrochemistry>Exercise 1>Q 91

The amount of electricity that can deposit

108 g

of silver from silver nitrate solution is:

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Alpha Question Bank for Medical: Chemistry>Chapter 9 - Electrochemistry>Exercise 1>Q 92

The moles of electrons required to deposit

1 gm

equivalent aluminium (atomic weight

= 27

) from a solution of aluminium chloride will be:

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Alpha Question Bank for Medical: Chemistry>Chapter 9 - Electrochemistry>Exercise 1>Q 93

A current of

9.65 amp

. flowing for

10

minutes deposits

3.0 g

of a metal. The equivalent weight of the metal is:

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Alpha Question Bank for Medical: Chemistry>Chapter 9 - Electrochemistry>Exercise 1>Q 94

Wg

of copper deposited in a copper voltameter when an electric current of

2

ampere is passed for

2

hours. If one ampere of electric current is passed for

4

hours in the same voltameter, copper doposited will be:

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Alpha Question Bank for Medical: Chemistry>Chapter 9 - Electrochemistry>Exercise 1>Q 95

How many minutes will it take to plate out

5.0 g

of

Cr

from a

{Cr}_{2} {({SO}_{4})}_{3}

solution using a current of

1.50 A

? (Atomic weight

: Cr = 52.0

)

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Alpha Question Bank for Medical: Chemistry>Chapter 9 - Electrochemistry>Exercise 1>Q 96

A current of

9.95 amp

following for

10

. minutes, deposits

3 g

of metal. The equivalent weight of the metal is:

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Alpha Question Bank for Medical: Chemistry>Chapter 9 - Electrochemistry>Exercise 1>Q 97

The ratio of weights of hydrogen and magnesium deposited by the same amount of electricity from aqueous

H_{2} {SO}_{4}

and fused

{MgSO}_{4}

are:

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

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: