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Coupling reaction - Miscellaneous reactions
Phenol couples along with benzene diazonium chloride in existence of an alkaline solution to make a red dye (p-hydroxy azobenzene).
Phenol couples with phthalic anhydride in existence of concentrated to make a dye, (phenolphthalein) used as an indicator.
The valency of sulphur in sulphuric acid is: (1) 2 (2) 4 (3) 6 (4) 8 Ans: 6
formation of scales
Q. Extraction of Iron oxide and titanium dioxide? Iron oxide and titanium dioxide do not dissolve in the alkali and are filtered off as sludge. The solution is cooled and most
How to give a common name of alkyl groups?
A crucial step in the Robinson annelation is the elimation of an aldol adduct to form an enone. The elimination of an aldol product can occur in base (it occurs even more readily i
how can i make a project work on it?
determination of proteins in flour sample
no mg eqivalent of solute per liter of solution
Preservatives: The preservatives avoid spoilage of food because of microbial expansion. The most common preservative employed is sodium benzoate; C 6 H 5 COON a It is metabol
how periodic table is helpful in chemistry give two example
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