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Condensation with formaldehyde - Miscellaneous reactions
Phenol condenses with formaldehyde (excess) in presence of sodium hydroxide or acid (H+) for about a week to form a polymer known as bakelite (a resin).
#quest what is castner kellner procession..
give examples
Addition polymerization: It involves following three mechanisms: 1. Free radical polymerization 2. Ionic polymerization mechanism 3.
The number of unpaired electrons in a chromic ion Cr 3+ (atomic number = 24) is: (1) 6 (2) 4 (3) 3 (4) 1 Ans: 3
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
Q. Evaluate slice bread on the basis of appearance and taste? Appearance A slice of bread can be having white/creamy white colour at the center and the brown colour on the
How to make RM (Reichert Meissl)?
Chemical reactions of glycerol.
difference between electrochemical cells and electrochemical series
examples of masking agents and substance used for
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