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Fractional crystallisation- Purification of organic compound The method of separation of diverse components of a mixture by repeated crystallisations is termed as fractional cr
Q. Show the Extraction of Oxygen? Oxygen is separated from air on a large scale by the fractional distillation of liquid air. It is obtained as a by-product along with hydrogen
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(a) Derive a relationship between the elevation in boiling point of a solution and the mole fraction of the solute from the thermodynamic consideration. (b) The molal elevatio
HOW WE NAMING THE BOND LINE NOTATION
It is a phenomenon in which compounds have same moleculer formula but different structural formula due to which they posses different physical and chemical properties.
According to Bohr's principle, the relation between principle quantum number and radius of orbit is: (1) r ∞ n (2) r ∞ n 2 (3) ∞1/n (4) r∞ 1/ n 2 Ans: r
Which has highest second ionisation energy? Electronic config of Na(+) is noble gas config. . so its very difficult to remove an electron so it will have very high 2nd ionisati
Which of the following is an incorrect representation for a neutral atom: 108/47Ag 63/30Cu 30/15P 13/6C 6/3Li
Consider a SAWmodel for the same polymer, but with the ?rst monomer bonded to the wall. (This is the model we treated in class.) How many con?gurations have now been eliminated as
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