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Q. Explain about Magnetic Separation ?
This process is based on the difference in magnetic properties of minerals. If the ore but not the gangue is attracted by a magnetic field, it may be concentrated to-yield a sample which is rich in the metal. The pulverised mineral is passed over a rubber belt which goes on a pully in a magnetic field. The non-magnetic gangue particles fall off in a vertical position when the belt passes over the pully, but the magnetic ore clings to the belt. When the belt passes out of the influence of the magnetic field, the ore drops off. Magnetite (Fe3O4), haematite (Fe2O3), chromite (FeO.Cr2O3), wulfrarmite (FeWO4), and ilmenite (FeO.TiO2) are some of the minerals which are separated from non- magnetic impurities by this process.
Fast reactions are those reactions that occur instantaneously. A fast reaction depends upon the reaction rates. These reactions are so fast that they occur as soon as the reactants
Tempering is a heat treatment method for metals and alloys. In steels, tempering is completed to "toughen" the metal by transforming brittle marten site into bainite or a combinat
why LiF and CsI are solibile in water but LiI and CsF are less solibility in water
Dichromate titrations - oxidation reduction titrations These are titrations where, potassium dichromate is utilized as an oxidising agent in acidic medium. The medium is organi
Inductive effect - Relative reactivity of aldehydes and ketones The comparative re-activities of aldehydes and ketones in nucleophilic addition reactions might be attributed to
Q. Show the Units of Measurement? You most likely know your height in feet and inches. The majority people outside the United States however measure height in meters and centim
Explain about the Intrinsic breakdown: It's because of the excitation of electrons into the conduction band across the energy gap under the condition of excessive volt
Every substance poses exact amount of energy known as internal energy or intrinsic energy (E).
2NO(g)+2H2O yeilds N2+2H2O Write the rate law for the pervious reaction if doubling the concentration of H2 doubles the reaction rate, and if doubling the concentration of NO incre
what is addition,substitution,rearrangement,elimination reactions?
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