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Electrolysis and Storage Batteries

Electrolysis and Storage Batteries
Weston standard cell at 20°C has voltage of ____ volts.

1.2
0.8
1.5
1.0187

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Electrolysis and Storage Batteries
While preparing electrolyte for a lead-acid battery

acid is poured into water
anyone of the two can be added to other chemical
water is poured into acid
none of the listed here

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Electrolysis and Storage Batteries
During discharge, the active material of both the positive and negative plates is changed to

Pb02
PbS04
PbS02
Pb

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Electrolysis and Storage Batteries
The e.m.f. of an Edison cell, when fully charged, is nearly

1.8 V
1.4 V
2.5 V
2.0 V

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Electrolysis and Storage Batteries
In a lead-acid cell dilute sulfuric acid (electrolyte) approximately comprises the following

three parts H2O, one part H₂SO₄
all H₂SO₄
two parts H2O, two parts H₂SO₄
one part H2O, three parts H₂SO₄

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Electrolysis and Storage Batteries
Cells are connected in series in order to

increase the current rating
increase the voltage rating
increase the life of the cells
None of the listed here

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