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Electrolysis and Storage Batteries

Electrolysis and Storage Batteries
Those substances of the cell which take active part in chemical combination and hence produce electricity during charging or discharging are known as______materials.

redundant
all
active
passive

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Electrolysis and Storage Batteries
Life of the Edison cell is at least

ten years
seven years
eight years
five years

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Electrolysis and Storage Batteries
The capacity of a lead-acid cell does not depend on its

quantity of active material
rate of charge
rate of discharge
temperature

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Electrolysis and Storage Batteries
When two batteries are connected in parallel, it should be ensured that

they have identical internal resistance
they have same make
they have same ampere-hour capacity
they have same e.m.f.

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Electrolysis and Storage Batteries
Which of the following is incorrect?

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

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Electrolysis and Storage Batteries
It is noticed that durum charging

there is a rise in voltage
energy is absorbed by the cell
all of these
the anode becomes chocolate brown in colour (PbCfe) and cathode becomes grey metallic lead (Pb)

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