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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.
material required
Isomerism - Organic Chemistry Organic substance comprising the same molecular reaction but differing from each other at least in some physical or chemical properties or both ar
Q. Describe Coordinated octahedral complexes? Six-coordinated octahedral complexes of the type Mubr, Ma 3 b 3 , Ma 3 b 2 c, Ma 3 bcd, Ma 2 bcd, Ma 2 bcde, Mabcd of would all g
What is the packet of energy called: (1) Electron (2) Photon (3) Positron (4)Proton Ans: Photon
explanation on the periodic tables
What is the principle underlying the extraction of metal
Smell - Physical characteristics of carbonyl compounds Along with the exception of lower aldehydes that have unpleasant odours, aldehydes and ketones have usually pleasant smel
Aromatic compounds - Homocyclic or Carbocyclic These compounds contain at least one benzene ring, that is a six-membered carbocyclic ring occupying alternate single and double
Derive Nerst equation for both anode and cathode.
Nitrogen atom has an atomic number of 7 and oxygen has an atomic number 8. The total number of electrons in a nitrate ion will be: (1) 8 (2) 16 (3) 32
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