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Q. why is sodium aluminates is a better coagulates then ferrous sulphates or alum?
Ans. Sodium aluminates (NaAlO2): It is better coagulant than FeSO4 and alum because it easily hydrolyzes.
2NaAlO2 + 2H2O =2NaOH + Al (OH2)3
Sodium hydroxide formed as per the above reaction precipitates Mg+2 salts.
MgCl2 + 2NaOH = Mg (OH) 2 + 2NaCl
Both Al (OH) 3 and Mg (OH)3 are flocculent precipitates and they easily trap any finely suspended and colloidal impurities such as silica and oil.
H2O is liquid buy why H2s gas? who it is one group.
Determine about the Silicon Silicon has a unique ability to be oxidized into silica that produces a chemically stable, protective and insulating layer on the surface of water.
energy of electron in hydrogen atom
1.sheilding & de-sheilding 2.magnetic anisotropy 3.hydrogen bonding
which electrodeh is the best
Q. Explain about Thiosulphuric Acid? Thiosulphuric acid, H 2 S 2 0 3 , has never been isolated but its salts are well known which contain the thiosulphate ion, S 2 O 2- 3 . Th
electronic vinyas
It is a part of chemistry which deals with the organic compounds formed by carbon , hydrogen ,oxygen.
hittorf rule
A boat conformation of cis-1,3-dimethylcyclohexane:
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