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Show the Principles of preservation ? Various methods can be used for preservation of foods like freezing, pasteurization, sterilization, canning, dehydration, use of preserva
how to calculate equivalent weight of phenol
what is perkin reaction?
Q. Reactions with metals? Ans. Halogens commonly undergo reactions with metals. Halogens react with the alkali metal family, Group IA in the periodic table. For example,
Why does Ferric Chloride shows color?
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Discuss "cohesive energy" and "electron affinity". ‘Cohesive energy’: In a chemical bond, it’s the energy required to dissociate a solid into isolated atoms or molecules as ap
How is chemistry important in medicine & healthcare?
The total number of valence electrons in 4.2 gm N - 3 of ion is ( N A is the Avogadro's number): (1) 1.6N A (2) 3.2N A
The emission spectrum of hydrogen is found to satisfy the expression for the energy change. teiangle E (in joules) such thatTriangle E= 2.18x10(1/n 2 1 - 1/ n 2 1 ) J where n
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