NCERT Class 9 Science Chapter 2 Is Matter Around Us Pure is provided here for download in PDF. We have provided here the latest edition of the NCERT Chapter that has been published by the National ...
Explanation: A pure substance is one which is made up of only one kind of atoms or molecules. They have the same composition throughout. 2.Rusting of an article made up of iron is called (a) corrosion ...
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