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Differential extraction - Purification of organic compounds This technique is employed for the separation of an organic compound that solid or liquid from its aqueous soluti
The bond energy of an O- H bond is 109 kcal mol 1. When a mole of water is formed from H and O atoms, then 218 kcal is released. Two O-H bonds are there is H2O so 2*109 kcal an
Distillation under reduced pressure: Distillation under reduced pressure is widely used for the purification of liquids which have very high boiling points at atmospheric pres
Q. What do you mean by Milk Foams? The proteins and water in milk are extended into thin films by agitation. These thin films enclose small air bubbles to make foam in which t
90ml of an unknown concentrated chlorine was diluted with 2250l of water.The dilution now is 0.08mg/l. what is the initial concentration of the chlorine before dilution?
bohr model for hydrogen atom?
why is filtration in soil and water a slow process and explain the colour change in the filtrate
What is happen whenever H2SO4+HNO3 adding to the phenol.give the reaction Ans) Phenol + HNO3(in prescence of sulphuric acid) --> 2-nitrophenol + 4-nitrophenol.
Formation of proteins-peptide bond: Proteins are made by joining the carboxyl group of one amino acid to the α-amino group of other amino acid. The bond build among two amino a
why benzene is more stable then eniline?
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