Reimer Tiemann Reaction
Trending Questions
Q.
When sodium fusion extract is acidified with acetic acid and lead acetate is added to it a black precipitate of lead sulphide indicates the presence of:
Halogens
Nitrogen
Sulphur
Carbon
Q.
An organic compound ‘’ () when treated with conc. undergoes cleavage to yield compounds ‘’ and ‘’. ‘’ gives a yellow precipitate with whereas ‘’ tautomerizes to ‘’. ‘’ gives a positive iodoform test. ‘’ could be:
Q. 27 Reaction of 1, 3dichlorocyclobutane with Na in dry ether
Q. How to find the percentage of keto form and enol form in keto enol tautomerism in case of diketones?
Q. How do Pd, Pt and Ni provide hydrogen to the reaction? Where do they get the hydrogens from?
Q. Explain in brief
Q. Which of the following is the most acidic?
(1) HCOOH
(2)
(3)
(4)
Q. Which of the following is the most acidic?
(1) HCOOH
(2)
(3)
(4)
Q.
The major product P of the above reaction is:
The major product P of the above reaction is:
- All are obtained in equal amount
Q.
The order of the increasing acidity is as follows:
Q. why do carbocations have sp2 hybridisation?
Q. In the reaction,
The electrophile involved is:
The electrophile involved is:
- Dichloromethyl anion (CHCl2)−
- Formyl cation (CHO)+
- Dichloromethyl cation (CHCl2)+
- Dichlorocarbene (:CCl2)
Q. How many methanides are perfect in the following carbides?
SiC, CaC2, Be2C, Al2C6, Al4C3, B4C
SiC, CaC2, Be2C, Al2C6, Al4C3, B4C
Q. The equivalent n factor of Ca(OH)2 and H3PO4 in Ca(OH)2+H3PO4=CaHPO4+2H2O is?