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Science CBSE Homework Assignments
Class 8
Chemical effects of electric current
Evolution of gas and changes in colour
2.
Change of colour of the solution
Task:
2
m.
1.
Boojho’s unde has set up an electroplating factory near his village. He should dispose off, the waste of the factory
according to the disposal guidelines of the local authority
in the nearby corn field
in the nearby river
in the nearby pond
2.
When electric current is passed through a conducting solution, there is a change of colour of the solution. This indicates
the magnetic effect of current
the lightning effect of current
the heating effect of current
the chemical effect of current
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