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Q. How can we obtain Pure alumina? Pure alumina is obtained from bauxite ore. Powdered bauxite mineral is heated in a concentrated solution of sodium hydroxide under pressure w
Q. Composition of the nucleus Since the time of Rutherford, other scientists have learned a significant amount about the fundamental properties about the nucleus of an atom. In
sn1 and sn2 reactions
formation of ammonium ion
how to balance chemical eqations
The expression for Bohr's radius of an atom is: (1) r= n 2 h 2 / 4 Π 2 me 4 z 2 (2) r= n 2 h 2 / 4 Π me 2 z 2 (3) r= n2h2/4 Π me 3
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(a) Explain in terms of ionic equilibria why the aqueous solution of a salt derived from a weak acid and a strong base (e.g. sodium phenolate) has a pH greater than 7. (b) B
what is amine
Q. Preparation of hot souffle ? i) Melt 12 g butter in a saucepan. Add 12 g flour and stir cook for 1-2 minutes. ii) Gradually add ¼ cup of scalded milk stirring continuou
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