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Chemical Effects of Electric Current - Class VIII Quiz

Class VIII
Science
Chemical Effects of Electric Current
14 questions
HARD

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1. What is the primary chemical effect of electric current?

Heating effect · Magnetic effect · Electrolysis · Chemical decomposition

2. Which of the following solutions can conduct electric current?

Pure water · Salt solution · Sugar solution · Distilled water

3. What happens to water during electrolysis?

It evaporates · It decomposes into hydrogen and oxygen · It freezes · It turns into acid

4. Which of the following is a product of electrolysis of water?

Chlorine · Hydrogen · Ozone · Nitrogen

5. What is the role of electrodes in electrolysis?

To provide heat · To conduct electricity · To produce light · To dissolve substances