Ratul Das
05/01/2023
07/09/2021
18/08/2020
Types of Hydrogen Bonds // Class 11// Lecture 20// 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...
13/08/2020
Preparation of Alcohals from Carbonyl compounds //Lecture 5// Class 12// Ratul Das Recommended book for Chemistry Class 12- https://amzn.to/39cx4y2 Recommended book for Chemistry Class 11- https://amzn.to/306sKgS R&D Education is https://ww...
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