Class 8 Science: Chemical Effects of Electric Current
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Q1 · MCQ · 1 mark
Which of the following liquids allows electricity to pass through it?
Q2 · MCQ · 1 mark
The process of depositing a layer of metal on an object using electricity is called ____.
Q3 · MCQ · 1 mark
What is the liquid used in electrolysis called?
Q4 · MCQ · 1 mark
Which of the following is a good conductor of electricity?
Q5 · MCQ · 1 mark
During electrolysis, at which electrode does a metal deposit?
Q6 · MCQ · 1 mark
Which gas is produced at the anode during electrolysis of water?
Q7 · FILL · 1 mark
Pure water is a ____ conductor of electricity.
Q8 · FILL · 1 mark
The electrode connected to the positive terminal of the battery is called the ____.
Q9 · FILL · 1 mark
Electroplating is used to protect metals from ____.
Q10 · FILL · 1 mark
The LED glows when current passes through a ____ liquid.
Q11 · SHORT · 3 marks
What is electrolysis? Give one practical application of electrolysis.
Q12 · SHORT · 3 marks
Explain what electroplating is and give two advantages of electroplating.