Practice Exercises - 11.7 | 11. Chemical Effects of Electric Current | CBSE 8 Science
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11.7 - Exercises

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Practice Questions

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Question 1 Easy

What are conductors?

💡 Hint: Consider the properties of metals.

Question 2 Easy

Name one good conductor.

💡 Hint: Think of liquids that cause bulbs to glow.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

Which of the following is a good conductor?

Distilled Water
Lemon Juice
Plastic

💡 Hint: Consider which liquid was tested successfully in the experiments.

Question 2

True or False: Electroplating is used to make metal objects look shiny and resist corrosion.

True
False

💡 Hint: Think about the purposes of electroplating in everyday items.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Explain how adding salt to distilled water changes its properties regarding conductivity.

💡 Hint: Consider what happens to salt when mixed in water.

Challenge 2 Hard

In a scenario where a metallic object is electroplated, what precautions should be taken regarding environmental concerns?

💡 Hint: Think about how waste products impact the environment.

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