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8th CBSE
IMPORTANT
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An electrolytic cell consists of a cathode, anode and an electrolyte.

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Important Questions on Electric Current and Its Chemical Effects

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8th CBSE
IMPORTANT
The Living World A book of Science and Technology>Chapter 16 - Electric Current and Its Chemical Effects>Something To Know>Q 3
Oxygen gets liberated at the anode during the electrolysis of acidfied water.
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8th CBSE
IMPORTANT
The Living World A book of Science and Technology>Chapter 16 - Electric Current and Its Chemical Effects>Something To Know>Q 4
Electrorefining is the process of coating one metal on another using an electric current.
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8th CBSE
IMPORTANT
The Living World A book of Science and Technology>Chapter 16 - Electric Current and Its Chemical Effects>Something To Know>Q 5
The phenomenon of 'Electro-magnetic Induction' was discovered by the Italian Scientist, Alessandro Volta.
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8th CBSE
IMPORTANT
The Living World A book of Science and Technology>Chapter 16 - Electric Current and Its Chemical Effects>Something To Know>Q 1

Tick (✔) the correct option.
The names of four electrolytes are given below:
(A) sea water

(B) tap water

(C) nitric acid

(D) oxalic acid

Out of these, the weak electrolytes are the ones labelled as-

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8th CBSE
IMPORTANT
The Living World A book of Science and Technology>Chapter 16 - Electric Current and Its Chemical Effects>Something To Know>Q 2
Electolytes conduct electricity due to the movement of-
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8th CBSE
IMPORTANT
The Living World A book of Science and Technology>Chapter 16 - Electric Current and Its Chemical Effects>Something To Know>Q 3
The electrode, connected to the positive terminal of a battery, is known as the
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8th CBSE
IMPORTANT
The Living World A book of Science and Technology>Chapter 16 - Electric Current and Its Chemical Effects>Something To Know>Q 4
The phenomenon of decomposition of an electrolyte, when electricity is passed through it, is known as-
MEDIUM
8th CBSE
IMPORTANT
The Living World A book of Science and Technology>Chapter 16 - Electric Current and Its Chemical Effects>Something To Know>Q 5
The process, of coating of (say) iron with chromium, is known as-