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mole concept

carbon and its compounds

https://drive.google.com/open?id=0B-Nzace_NdyYYWdGWE5kbmp6OGtsZG00MU44dUJ3LUE2STk4
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EXTRACTION OF METALS!!

Acid bases and Salt part-3

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Acid bases and Salt part-2

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Acid Bases and Salt part-1

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