Electrolysis and Storage Batteries
Local action in a battery is indicated by

both of the listed here
excessive drop in the specific gravity of electrolyte even when the cell is on open circuit
excessive gassing under load conditions
none of the listed here

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Electrolysis and Storage Batteries
For a cell to work, which of the following condition(s) become necessary ?

Electrolyte liquid or paste should be conducting
Two electrodes of different meta’s should be inserted in the electrolyte, not touching each other
All of the listed here
Electrolyte must chemically react with one of the electrodes

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