Ratul Das
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19/09/2020
Electron dot picture//Class10// Lecture 4// Rat5ul Das Recommended book for Chemistry Class 11- https://amzn.to/306sKgS R&D Education is https://www.facebook.com/RDteammember/ Arohan Group of institute https://ww...
16/09/2020
Covalent bond //Lectiure 3//class10 Recommended book for Chemistry Class 11- https://amzn.to/306sKgS R&D Education is https://www.facebook.com/RDteammember/ Arohan Group of institute https://ww...
14/08/2020
Valency and valence electron//Class10// chemistry// Chapter4// Lecture 2 Recommended book for Chemistry Class 11- https://amzn.to/306sKgS R&D Education is https://www.facebook.com/RDteammember/ Arohan Group of institute https://ww...
13/08/2020
Molecular orbital Theory//Chemical bonding and molecular structure// Lecture 17// Ratul Das Recommended book for Chemistry Class 11- https://amzn.to/306sKgS R&D Education is https://www.facebook.com/RDteammember/ Arohan Group of institute https://ww...
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