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Science
8th
grade
Chemical Effects of Electric Current | Chapter Assessment | English | Grade 8
10 questions
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- 1. Multiple Choice
Poor conductors of electricity are called
conductors
Insulators
semiconductors
semi-Insulators
- 2. Multiple Choice
Which of the following is a conductor?
Wood
Plastic
Aluminium
Rubber
- 3. Multiple Choice
Which of the following is not a conductor?
Wood
Plastic
Rubber
All of the above
- 4. Multiple Choice
Which of the following liquids conducts the least amount of electricity?
Salt Water
Water
Vinegar
Lemon Juice
- 5. Multiple Choice
In which of the following, effect of electric current is utilized?
Heating Effect
Magnetic Effect
Chemical Effect
All of the above
- 6. Multiple Choice
A bulb uses which of the following effect of electric current to glow?
Heating Effect
Magnetic Effect
Chemical Effect
All of the above
- 7. Multiple Choice
Electroplating is a process that uses which of the following effect of electricity?
Heating Effect
Magnetic Effect
Chemical Effect
All of the above
- 8. Multiple Choice
In the process of electroplating, the positive ion of the ionised solution gets attracted towards
The positive terminal
The negative terminal
Both the terminals
Neither of the terminals
- 9. Multiple Choice
Structures like bridges and automobiles are protected from corrosion by coating a layer of ______ .
copper
iron
aluminium
zinc
- 10. Multiple Choice
On passing electricity through water, oxygen was formed at the ________ .
positive terminal
negative terminal
both the terminals
neither of the terminals
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