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A great video lecture conducted by experienced chemistry teacher on 9th class chemistry chapter 2 topic2.1 discovery rays discovery of electron. Get full understanding or ask any questions.

Discovery Rays & Discovery of Electron, ch 2, lec 2, Discovery Rays & Discovery of Electron - 9th Class Chemistry

40:42

Discovery Rays & Discovery of Electron, ch 2, lec 2, Discovery Rays & Discovery of Electron - 9th Class Chemistry

35:25

Discovery of proton, ch 2, lec 2, Discovery Rays & Discovery of Electron - 9th Class Chemistry

29:00

Properties of proton, ch 2, lec 2, Discovery Rays & Discovery of Electron - 9th Class Chemistry

34:37

Properties of proton, ch 2, lec 2, Discovery Rays & Discovery of Electron - 9th Class Chemistry

34:16