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03/07/2024
Himanta Biswa Sarma CMO Assam Gaurav Gogoi Rahul Gandhi
অসম চৰকাৰৰ জনস্বাস্থ্য কাৰিকৰী বিভাগৰ পানী পৰীক্ষাগাৰ কৰ্মচাৰী সকলোৰ সমস্যা সমাধানৰ দাবীত ক বকোঃ ৰাজ্য চৰকাৰৰ জনস্বাস্থ্য কাৰিকৰী বিভাগৰ অন্তৰ্গত বিশুদ্ধ খোৱা পানী পৰীক্ষাগাৰ কৰ্মচাৰী সকলোৰ চৰকাৰী দা দা...
08/07/2023
Attending training conducted by Quality Council of India
10/01/2022
Solid State, L-3, Part-2, Chemistry, HS-2
17/06/2020
Solid State, L-3, Part-1, Chemistry, HS-2
Solid State ll Chemistry ll Class 12 #L3 ll Part- 01 Abrief discussion of the chapter solid state of class 12. By: Badru Sir
17/06/2020
Solid State, L2, Chemistry, HS 2
Class 12 Chemistry ll Physical Chemistry Class 12 ll NCERT ll CBSE ll Chapter- 1 ll #L- 2 CLASS- 12 CHEMISTRY PART- PHYSICAL CHEMISTRY CHAPTER - 1 Lecture - # 2 A brief discussion on physical chemistry by: BADRUZZAMAN BARBHUIYA
17/06/2020
Solid State, L1, Chemistry, HS 2
Class 12 Chemistry ll Physical Chemistry Class 12 ll NCERT ll CBSE ll Chapter- 1 ll #L- 1 CLASS- 12 CHEMISTRY PART- PHYSICAL CHEMISTRY CHAPTER - 1 Lecture - # 1 A brief discussion on physical chemistry by: BADRUZZAMAN BARBHUIYA
Solid State L2, Part 1 # H.S 2
https://youtu.be/QkjNcUH4OaE
22/06/2018
Please be a part of the Gorgeous motivational program on 24th June, 2018(Sunday).
VENUE - College premises, R.P Road, Hailakandi, Near Assam Gramin Vikash Bank. TIME - 10 AM
21/05/2017
Probable mechanism of Wittig Reaction
REACTION OF THE DAY:- The Wittig reaction or Wittig olefination is a chemical reaction of an aldehyde or ketone with a triphenyl phosphonium ylide (often called a Wittig reagent) to give an alkene and triphenylphosphine oxide.
The Wittig reaction was discovered in 1954 by Georg Wittig, for which he was awarded the Nobel Prize in Chemistry in 1979. It is widely used in organic synthesis for the preparation of alkenes.It should not be confused with the Wittig rearrangement.
Wittig reactions are most commonly used to couple aldehydes and ketones to singly substituted phosphine ylides. With unstabilised ylides this results in almost exclusively the Z-alkene product. In order to obtain the E-alkene, stabilised ylides are used in the Horner–Wadsworth–Emmons reaction or unstabilised ylides are used in the Schlosser modification of the Wittig reaction.
Dear Students, as I am extremely busy with my Walima Program (marriage party ), could not start the Classes of H.S 2nd year in due time .In this regard I have scheduled a meet on 30th April (Sunday ) on the premises of my study room at R. P Road(Near the residence of Dr. Ali).As individual contract is a difficult way for now, I have attempted this method, so that my students can be informed effectively.
Yours,
Badruzzaman Barbhuiya