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Q. Illustrate about Werners Theory?
Based on the study of a large number of compounds. Wermer gave the following postulates:
• Metal atoms in complexes possess two types of valences namely. Principal or an auxiliary or secondary.
• Primary valencies are always satisfied by anions but the secondary valencies can be satisfied either by anions and/or neutral molecules.
• Every metal atom has a fixed number of auxiliary valencies.
The secondary valencies show directional properties. In other words secondary valencies are directed in space around the central ion.
give an example of tri atomic gass
atomic volume
structure and uses
The correct sequence of increasing covalent character is represented by: (1) LiCl 2 (2) BaCl 2 (3) NaCl 2
Acidic Nature of Phenol - Hydrocarbon The acidic nature of phenol is observed in the following: (1) Phenol changes blue litmus to red. (2) Highly electropositive metals r
the given solution contains 2.5g of laundry soap dissolved per 250 cubic cm.determine the amount of free alkali in 350 cubic cm.
Q. Show Egg foams application in food preparation? Foams need to be stable if they are to have a role in food preparation. Stability is enhanced if the surface tension is low,
Carry over in steam boiler: The phenomenon of carrying of water along with impurities by steam is called "carry over". This is mainly due to priming and foaming. Priming and foami
I WANT TO DISCUSS ABOUT IRON CHEMICAL ANALYSIS.POSSIBLE THAT?.
The word "cereal" is derived from the name of the Roman grain or harvest goddess, Ceres. Cereals are the seeds of the grass family. These are the complex carbohydrates and consist
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