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Electrolysis and Storage Batteries

Electrolysis and Storage Batteries
During the idle period of the battery, strong electrolyte tends to change the active material of the cell into

PbO
PbSC-4
Pb
Pb02

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Electrolysis and Storage Batteries
Electrolyte used in a lead-acid cell is

NaOH
only water
only H₂SO₄
dilute H₂SO₄

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Electrolysis and Storage Batteries
Which of the following cell has a reversible chemical reaction ?

Carbon-zinc
Lead-acid
Mercury oxide
Silver-oxide

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Electrolysis and Storage Batteries
Each cell has a vent cap

to allow gases out when the cell is on charge
to check the level of electrolyte
to add water to the cell if needed
all of the listed here

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Electrolysis and Storage Batteries
Which of the following is incorrect?

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

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Electrolysis and Storage Batteries
Internal resistance of a cell is reduced by

putting plates very close together
using vent plug to permit gas formed during discharge
all of the listed here
increasing the plate area

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