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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.
What are liquid crystals? Give examples. Liquid crystals are an intermediate state among liquid state and solid state. They exhibit some characteristic properties of both soli
can all the total heat content available betotally converted to work done?
write a short note on colour and constitution
what is law of defenit propotion
Addition catalysed by base - Aldehydes and Ketones In the existence of a base one equivalent of an alcohol reacts along with only one equivalent of the carbonyl compound. The p
What are the Stages of heat treatment process All heat treatment processes comprises 3-main steps: (i) Heating of metal/alloy to the predetermined (definite) temperature.
Unlike components of the 3 d series, 4 d and 5 d elements have little simple aqueous cationic chemistry. The main exceptions are La3+ and Y3+, and Ag+, which builds some soluble
The Crystal Field Theory experiment shows the effects on metal d orbital energies of moving a set of negative point charges close to a metal ion. As one would expect, the energies
How does an equilibrium is disturbed by adding 1 mole of H2 in the following reaction: N 2 + 3H 2 ----> 2NH 3 Ans) The equilibrium will not be affected according to Le Chatel
lithium and beryllium markedly differ from other members of their respective groups.
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