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Electrolysis and Storage Batteries

Electrolysis and Storage Batteries
The storage battery generally used in electric power station is

lead-acid battery
none of the listed here
zinc-carbon battery
nickel-cadmium battery

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Electrolysis and Storage Batteries
Which of the following is incorrect?

A storage cell has a reversible chemical reaction
A primary cell has an irreversible chemical reaction
A carbon-zinc cell has unlimited shelf life
A lead-acid cell can be recharged

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Electrolysis and Storage Batteries
The average charging voltage for alkali cell is about

1.2 V
1 V
1.7 V
2.1 V

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Electrolysis and Storage Batteries
The effect of sulphation is that the internal resistance

decreases
none of the listed here
increases
remains same

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Electrolysis and Storage Batteries
It is noticed that during discharging the following does not happen

both anode and cathode become PbS04
the cell absorbs energy
specific gravity of H2SO4 decreases
voltage of the cell decreases

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Electrolysis and Storage Batteries
Following will happen if battery charging rate is too high

excessive gassing will occur
bulging and buckling of plates will occur
temperature rise will occur
all of the listed here

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