05/01/2023
Ratul Das
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Contact information, map and directions, contact form, opening hours, services, ratings, photos, videos and announcements from Ratul Das, Tutor/Teacher, Pathsala.
05/01/2023
02/01/2023
07/09/2021
20/09/2020
Preparation of phenol //Lecture 10// class 12// Ratul Das Recommended book for Chemistry Class 11- https://amzn.to/306sKgS Recommended book for Chemistry Class 12- https://amzn.to/39cx4y2 R&D Education is https://ww...
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...
17/09/2020
Chemical properties of alcohol part 2// lecture 8// Rtul Das Recommended book for Chemistry Class 11- https://amzn.to/306sKgS Recommended book for Chemistry Class 12- https://amzn.to/39cx4y2 R&D Education is 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...
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...
15/08/2020
Preparation Of Alcohols From Grignard Reagent//Alcohols,Phenols and Ethers// Lecture 6//By 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...
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
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...
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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Pathsala
781325