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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.
Resonance for the methyl group at room temperature The resonance for the methyl group at room temperature is a singlet. When the temperature is lowered, the resonance of this m
the measured dipole moment of-para nitroaniline (6.2D) is larger than the value calculating using empirical group moment (5.2D)
Read the recent tribunal case Taylor v Archicentre Ltd (General) [2012] NSWCTTT 348 (a) Provide a summary account of the key material facts concerning the architectu
What are the genral properties of s-block elements
WHAT IS USE OF ION PAIR REAGENTS? The chemical substances that pair each other, to produces complexes. These can use for stabilization of one of the molecule that is more active
Given that ?H°298 for the reaction is -92.2 kJ mol-1, which is larger, the total bond dissociation energy of the reactants or the total bond dissociation energy of the products?
If hydrogen atom is in an energy level represented by n=4,how many spectral lines are possible in its emission spectrum? Solution) There is a formula for this i.e [ (n 2 - n 1
how analysis of iodine value
Synthesis of di and tri substituted benzenes
what is wet test for acid redicals?
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