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Chemistry - 9 Chapter - 8
Electro Chemistry
Test - 18
1.
Lead storage battery is fully charged when the sulphuric acid is:
a) Ten percent by mass
b) Twenty percent by mass
c) Thirty percent by mass
d) Forty percent by mass
2.
Single cell provides volts
a) One volts
b) Two volts
c) Three volts
d) Four volts
3.
In silver plating the electrolyte used is:
a) Potassium argento cyanide
b) Pure silver
c) Silver cyanide
d) Silver Nitrate
4.
In copper plating the electrolyte used is
a) Copper chloride
b) Copper nitrate
c) Copper sulphate
d) Pure copper
5.
Electricity cannot passes through aqueous solution of:
a) Sodium chloride
b) Potassium bromide
c) Potassium iodide
d) Urea
6.
Ionic theory to explain the process of electrolysis is put forward by
a) Dalton
b) Bohor
c) Arrhenius
d) Faraday
7.
Strong electrolyte is:
a) Ammonium hydroxide
b) Tartaric acid
c) Citric acid
d) Hydrochloric acid
8.
Weak electrolyte is:
a) Citric acid
b) Sulphuric acid
c) Nitric acid
d) Mineral acid
9.
The First electric battery was invented by ___________.
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10.
The branch of chemistry in which chemical energy is converted into electrical energy is called ___________.
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11.
The metallic plates in Voltaic cell are called ________________.
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