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Electrolysis and Storage Batteries

Electrolysis and Storage Batteries
The active materials of a nickel-iron battery are

all of these
nickel hydroxide
21% solution of kOH
powdered iron and its oxide

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Electrolysis and Storage Batteries
Negative plate of an Edison cell is made of

silver oxide
copper
lead
iron

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Electrolysis and Storage Batteries
The lead-acid cell should never be discharged beyond

1.9 V
2.1 V
1.8 V
2 V

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Electrolysis and Storage Batteries
Charging a sulphated battery at high rate results in

damage to separators, cell caps covers and battery case due to excessive temperature
All of the listed here
boiling of electrolyte due to gassing
warping of plates

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Electrolysis and Storage Batteries
The ratio of ampere-hour efficiency to watt-hour efficiency of a lead-acid cell is

always less than one
just one
always greater than one
none of the listed here

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Electrolysis and Storage Batteries
Ampere hour capacity of an industrial battery is based on ____ hours discharge rate.

24
10
12
8

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