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Q. Show Reduction to Metals?
After removed of the gangue, i.e. impurities physically mixed with the metal elements, the concentrated ore becomes ready for the isolation of metal. In concentrated ore, the metals are present in me form of their elements. Extraction of metals involves the reduction of metal compounds to free metals. In general, depending upon the reactivity of metals, their compounds may be reduced by one or more than one of the three kinds of metallurgical operations. These operations are hydrometallurgy, pyrometallurgy, and electrometallurgy.
The emf of the cell Cd/CdSO4(0.0093M)//CdSO4/Cd is 0.086V at 25°C find the value of X solution
LANTHANUM AND THE LANTHANIDES The lanthanides are 14 components following lanthanum in the periodic table, and associated with the filling of the seven orbitals of the
Q. Briefly Describe Problems and Applications of Radioactivity? Ans. All radiation, electromagnetic as well as the kind from nuclear decay, takes its toll on living organi
Cyclic or closed-chain compounds Cyclic compounds consist of at least one ring or closed chain of atoms. The compounds along with just only one ring of atoms in the molecule a
Physical properties of Alkyl cyanides (1) Alkyl cyanides are neutral substance with pleasant odour, similar to bitter almonds. (2) Alkyl cyanides are Lower members containin
Q. Show the Uses of Emulsions? Emulsions provide many useful functions in food preparation and processing. They: 1) act as vehicles for flavour to foods, 2) dilute ingr
Quantitative analysis: The quantitative analysis could be carried out using standard calibration curve, through standard addition or internal addition method. The method is su
Q. Evlaute the Percent Error? Juan computed the density of aluminium three times. Trial 1: 2.74 g/cm 3 Trial 2: 2.68 g/cm 3 Trial 3: 2.84 g/cm 3 Aluminium has a
Silver has a density of 10.5gcm -3 . The no. of silver atoms on a surface area of 10-12m 2 can be expressed in scientific notation aas y x 10x.The value of x is ..? Ans) d = m
It is important to differentiate the stoichiometric or empirical formula of a molecular substance from its molecular formula. The former expresses only the relative numbers of atom
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