Chemistry at bzaman

03/07/2024

Himanta Biswa Sarma CMO Assam Gaurav Gogoi Rahul Gandhi

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

17/06/2020

Solid State, L-3, Part-2, Chemistry, HS-2

17/06/2020

Solid State, L-3, Part-1, Chemistry, HS-2

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 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 PART- PHYSICAL CHEMISTRY CHAPTER - 1 Lecture - # 1 A brief discussion on physical chemistry by: BADRUZZAMAN BARBHUIYA

14/06/2020

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

21/05/2017

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.

20/04/2017

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