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8th CBSE
IMPORTANT
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A tester is used to test whether a particular material conducts electricity or not. 

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Important Questions on Chemical Effects of Electric Current

EASY
8th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 14 - Chemical Effects of Electric Current>Try out>Q 4
An LED can detect even a weak current. 
EASY
8th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 14 - Chemical Effects of Electric Current>Try out>Q 5
Chlorine, sodium sulphate, and calcium chloride are non-electrolytes. 
EASY
8th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 14 - Chemical Effects of Electric Current>Try out>Q 1
What is a cathode?
EASY
8th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 14 - Chemical Effects of Electric Current>Try out>Q 2
What changes may take place in electrolytes during the process of electrolysis? 
EASY
8th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 14 - Chemical Effects of Electric Current>Try out>Q 3
What are ions?
EASY
8th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 14 - Chemical Effects of Electric Current>Try out>Q 4
Why is iron coated with chromium? 
EASY
8th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 14 - Chemical Effects of Electric Current>Try out>Q 5
What are the commercial uses of electrolysis?
EASY
8th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 14 - Chemical Effects of Electric Current>Exercise>Q 1
In a circuit, the LED works as a/an-