Chemical Effects of Current
Class 8 - Science
(Worksheet)
Q1: Fill in the blanks
a. If electrodes are immersed in water and current is passed, bubbles of ________ and _______ are produced.
b. A coating of ______ is deposited on the iron to protect it from corrosion and formation of rust.
Q2: Circuit of the tester may be complete yet the bulb may not glow. Why?
Answer:
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Q3: Why does a bulb glow when an electric current is passed through it?
Answer:
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