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ELECTROLYSIS AND STORAGE BATTERIES

Electrolysis and Storage Batteries
In a lead-acid cell, lead is called as

negative active material
None of the listed here
positive active material
passive material

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Electrolysis and Storage Batteries
Sulphated cells are indicated by

the low voltage of the cell on discharge
the decrease of the specific gravity
the loss of capacity of the cell
all of the listed here

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Electrolysis and Storage Batteries
If a lead-acid cell is discharged below 1.8 V the following will happen.

All of the listed here
Internal resistance will increase
Sulphation of plates will occur
Capacity of cell will reduce

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Electrolysis and Storage Batteries
The common impurity in the electrolyte of lead-acid battery is

dust particles
lead crystals
chlorine
iron

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Electrolysis and Storage Batteries
The substances which combine together to store electrical energy during the charge are called ______ materials

insert
active
dielectric
passive

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