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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.
WHAT DOES DSA STAND FOR
Lithium aluminum hydride Lithium aluminum hydride reduces the carbonyl group to an alcohol.
Q. Show the Process of ion exchange chromatography? The process of ion exchange chromatography is the most important, effective and rapid method for the separation and purifica
Preparation and uses of western
what is the unique properties of colloids
ionic equilibrium
Describe Hall Effect? Briefly discuss physical origin and uses of Hall Effect? Ans: If a conducting bar is placed in a magnetic field B ⊥ to its axis and if a current flow
Q. Describe Sulphurous Acid ? Sulphurous acid H 2 SO 3 is known only in solution. It exists mainly as a hydrate of sulphur dioxide SO 2 . 7H 2 O two series of salts the bisulp
When an electron jumps from lower to higher orbit, its energy : (1) Increases (2) Decreases (3) Remains the same (4) None of these Ans: Increases
Q. What are the diffrent forms of energy? Ans: Kinetic energy is energy of motion. Gas molecules of a given substance move much more rapidly than do the molecules in the soli
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