EASY
8th CBSE
IMPORTANT
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Are lemon juice, vinegar and tap water, conductors or insulator?


Important Questions on Chemical Effects of Electric Current

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8th CBSE
IMPORTANT
All in One - SCIENCE CBSE Class 8>Chapter 14 - Chemical Effects of Electric Current>Chapter Practice>Q 6
An electrolyte is :
EASY
8th CBSE
IMPORTANT
All in One - SCIENCE CBSE Class 8>Chapter 14 - Chemical Effects of Electric Current>Chapter Practice>Q 10
The device which is used to detect the small current flowing in the circuit is
EASY
8th CBSE
IMPORTANT
All in One - SCIENCE CBSE Class 8>Chapter 14 - Chemical Effects of Electric Current>Chapter Practice>Q 2
Materials which do not allow an electric current to pass through them are called _____. (insulators/ conductors)
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8th CBSE
IMPORTANT
All in One - SCIENCE CBSE Class 8>Chapter 14 - Chemical Effects of Electric Current>Chapter Practice>Q 9
Small amount of a mineral salt present naturally in water makes it a _____ conductor of electricity.
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8th CBSE
IMPORTANT
All in One - SCIENCE CBSE Class 8>Chapter 14 - Chemical Effects of Electric Current>Chapter Practice>Q 15
LED glows even when a _____ electric current passes through it
EASY
8th CBSE
IMPORTANT
All in One - SCIENCE CBSE Class 8>Chapter 14 - Chemical Effects of Electric Current>Chapter Practice>Q 1
Adding of sugar makes pure water conducting.
MEDIUM
8th CBSE
IMPORTANT
All in One - SCIENCE CBSE Class 8>Chapter 14 - Chemical Effects of Electric Current>Chapter Test>Q 18

Describe briefly, how you will purify it by using the chemical of electric current. When a strip of impure copper metal is given to you. 

MEDIUM
8th CBSE
IMPORTANT
All in One - SCIENCE CBSE Class 8>Chapter 14 - Chemical Effects of Electric Current>Chapter Test>Q 20

Write the applications of electrolysis.