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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.
give me assigment of spontaneous and non spontaneous reactions
trivalent acid and basic radicals
catalyst used in polymerization
Q. Show the basic Characteristics of Organic Compounds? Ans. Almost all organic compounds contain the elements of hydrogen and carbon. These compounds often contain
why standard enthalpy change of Br2(g) is not zero
The frequency of strong yellow light in the spectrum of sodium is 5.09•10*14s calculated the wavelength of light
methods for preparing trihydric alcohols
The Ca 2+ and Mg 2+ ions in hard water form scum with soap. Therefore they don''t form lather and therefore don''t clean the dirt.
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
Ask question #imum 100 words accepted# Discussion about electrochemical serirs
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