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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.
Q. What do you mean by Permissible level ? To regulate and enforce safety about the use of these synthetic colours and dyes PFA, 1954 has covered their use in part IV comprisin
Suppose that lysine is dissolved into a buffer to a concluding concentration of 1 mM. Into this buffer, 80 percent of the lysine's side-chain amines are protonated. Determine the p
some examples of RELATIVE MOLECULAR MASS OF SOLUTES BY RELATIVE LOWERING OF VAPOR PRESSURE
what are limitations of nerst distribution law
Q. Quality of edible oils - fats? Various parameters are used for the assessment of the quality of fats and oils. Some of the important ones include determination of moisture c
Denaturation The structure of the natural proteins is accountable for their biological activity. These structures are arranged by numerous attractive forces among different par
Describe why shielding is more effective by electrons in a shell of lower principle quantum number than by electrons having the similar principle quantum number.
The co-ordination compounds are of great importance. These compounds constitute the minerals, plants and are also present in animals. These play important functions. For example, c
NITROGEN Nitrogen is the great strength of the triple bond makes N2 thermodynamically and kinetically stable but moderately electronegative element. The atom can form three sing
Q. Show the Halides of Aluminium? All the four trihalides of aluminium, i.e. AIF 3 , AICI 3 ,, AlBr 3 , and AlI 3 , are known. AIF 3 , is made by treating Al 2 0 3 with HF ga
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