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ELECTROLYSIS AND STORAGE BATTERIES

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

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

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Electrolysis and Storage Batteries
Sulphated cells are indicated by

the decrease of the specific gravity
the loss of capacity of the cell
the low voltage of the cell on discharge
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.

Internal resistance will increase
All of the listed here
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

chlorine
lead crystals
iron
dust particles

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

passive
active
insert
dielectric

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