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A great video lecture conducted by experienced chemistry teacher on 9th class chemistry chapter 1 topic chemical species. Get full understanding or ask any questions.

Chemical Species , ch 1, lec 1.3, Chemical Species - 9th Class Chemistry

8:14

Molecular Ion, ch 1, lec 1.3, Chemical Species - 9th Class Chemistry

28:43

Free Radicals, ch 1, lec 1.3, Chemical Species - 9th Class Chemistry

12:45

Free radicals, ch 1, lec 1.3, Chemical Species - 9th Class Chemistry

31:26