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Electrolysis and Storage Batteries

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

NaOH
only H₂SO₄
dilute H₂SO₄
only water

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Electrolysis and Storage Batteries
The charge required to liberate one gram equivalent of any substance is known as ______ constant

None of the listed here
Time
Boltzman
Faraday’s

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Electrolysis and Storage Batteries
Each cell has a vent cap

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

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Electrolysis and Storage Batteries
The ampere-hour efficiency of a leadacid cell is normally between

80 to 85%
20 to 35%
90 to 95%
70 to 75%

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Electrolysis and Storage Batteries
48 ampere-hour capacity would deliver a current of

6 amperes for 8 hours
24 amperes for 2 hours
8 amperes for 6 hours
48 amperes for 1 hour

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Electrolysis and Storage Batteries
It is noticed that durum charging

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

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