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Chemistry
Is Matter Around Us Pure?
CBSE
Class 9
Chemistry
Class 9 - Chemistry
Is Matter Around Us Pure?
MCQ
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1.
The rusting of an iron object is called :
a.
corrosion and it is a physical as well as a chemical change
b.
dissolution and it is a physical change
c.
corrosion and it is a chemical change
d.
dissolution and it is a chemical change
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