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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.
Molecular formula of gaseous hydrocarbons (Eudiometry) Eudiometry is a direct method for calculation of molecular formula of gaseous hydrocarbons without ascertaining the pe
show me mechanism of stille reactin
the density of a gas ''A'' is twice that of gas ''B'' at same temperature.The molecular mass of ''B'' is thrice that of ''A'' .the ratio of the pressures acting on A andB
Artificial process for manufacture of Petrol or gasoline (a) Cracking, (b) Synthesis
Table lists data for water, crystalline sodium thiosulfate pentahydrate, and several sodium thiosulfate solutions. Find ΔH to the nearest 0.01 kJ for the dissolution of 5.00 g of
The first use of quantum theory to explain the structure of atom was made by: (1) Heisenberg (2 )Bohr (3) Planck (4) Einstein Ans: Bohr
If magnetic quantum number of a given atom represented by -3, then what will be its principal quantum number: (1) 2 (2) 3 (3) 4 (4
how vulcanisation does changes the chareter of natural rubber
As electron moves away from the nucleus, its potential energy: (1) Increases (2) Decreases (3) Remains constant (4) None of these Ans: Increases
List orbitals from biggest to smallest, 3s, 3p, 3d.
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