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Science CBSE Homework Assignments
Class 8
Chemical effects of electric current
Evolution of gas and changes in colour
3.
Electricity
Task:
2
m.
1
.
Why is a layer of zinc coated over iron?
The layer of zinc is coated over iron because of the
Zinc prevents it from rust and corrosion
Zinc is a good conductor than iron
Zinc absorbs heat easily
Zinc gives shiny appearance
2
.
Will the solution of sugar in distilled water conduct electricity?
No, distilled water does not conduct electricity, but sugar solution in distilled water conducts.
Yes, it partially conducts electricity.
No, it does not conduct electricity.
Yes, distilled water does not conduct electricity, but sugar solution in distilled water conducts.
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