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A great video lecture conducted by experienced chemistry teacher on 9th class chemistry chapter 7 topic corrosion and its prevention. Get full understanding or ask any questions.

Corrosion and its Prevention, ch 7, lec 7.7, Corrosion and its Prevention - 9th Class Chemistry

21:27

Corrosion Prevention, ch 7, lec 7.7, Corrosion and its Prevention - 9th Class Chemistry

9:54