In the reaction,
CH3CH2C ≡ CH Products
Products will be:
CH3COCH3
CH3COCH2OH
CH3COOH + HCOOH
CH3CHO + HCHO
The compound formed on heating chlorobenzene with chloral in the presence of concentrated sulphuric acid is
gammexane
DDT
freon
hexachloroethane
Ethyl alcohol is used as a preservative for chloroform because it :
prevent aerial oxidation of chloroform
prevents decomposition of chloroform
decomposes phosgene to CO and Cl2
removes phosgene by converting it to ethyl carbonate
Which among the following is a catalyst for the preparation of Grignard reagent ?
Iron powder
Iodine powder
Activated charcoal
Manganese dioxide
Which is not present in Grignard reagent ?
Methyl group
Magnesium ion
Halogen atom
Carboxylic group
D.
Carboxylic group
The general formula of Grignard reagent is RMgX (an organometallic compound). Thus, carboxylic group is not present in Grignard reagent.
Methyl group → R-Mg-X ← Halogen atom
Which ligand is useful for removal of the toxic effect of lead metal in body in chelate therapy treatment?
AsO
CH3COO-
(COO-)2