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Q. What is Calcinations process?
This is fie method of heating the concentrated ore in a limited supply of air to a high temperature but under the fusion temperature. In calcinations, volatile constituents of an ore are expelled. Hydrated and Hydroxide ores lose their water forming metal oxides. In case of carbonate ores, carbon dioxide is lost and metal oxides are made.
The maximum number of electrons that can be accommodated in a 3d subshell is: (1) 2 (2) 10 (3) 6 (4) 14 Ans: 10
A mixture of air and methanol vapour is fed to a converter in which the following reactions take place: CH OH O HCHO H O 3 2 2 2 1 + ® + 3 2 CH OH ® HCHO + H In addit
What do you understand by temperature independence paramagnetism? Ans) Compounds which are expected to be diamagnetic may exhibit this kind of weak paramagnetism. It arises from a
Reference solution: A proper reference solution contains color reagent plus sample buffer. The difference between the reference and a sample is that the concentration of
Is liquid ammonia is solvent?
why HNO3 is not used for detection of acidic radicals of 1st and 2nd group?
The assignment is basically concerned with the writing of a number of functions which can implement the density theory described above. These functions will then be called by a pro
Esterification of alcohol
An atom or group of atoms, which verify the characteristic properties of the Substance it, is known as functional group.
Analysis of oils and fats - Acid value It points out the amount of free acid present in the oil or fat. It is described as the number of milligrams of KOH needed to neutralize
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