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Q. What is Calcinations process?
This is fie method of heating the concentrated ore in a limited supply of air to a high temperature but under the fusion temperature. In calcinations, volatile constituents of an ore are expelled. Hydrated and Hydroxide ores lose their water forming metal oxides. In case of carbonate ores, carbon dioxide is lost and metal oxides are made.
On the basis of application, how are dyes classified? Describe essential features of any two of them.
#question how many calories are required to heat 1.0g water from 15 to 65c..
Reaction of 4 - bromobenzyl chloride with sodium cyanide in ethanol leads to?
WHAT ARE THE ELEMENTS OF DETERMINED QUALITATIVE ANALYSIS
crystal field splitting in octahedral complexes.
The valence electron in the carbon atom are: (1) 0 (2) 2 (3) 4 (4) 6 Ans: 4
H2,Li2,B2 each has bond order equal to 1 , the order of stability is
The ground state term symbol for an electronic state is governed by : (1) Heisenberg's principle (2) Hund's rule (3) Aufbau principle (4) Pauli exclusion principle
Chain, nuclear or skeleton isomerism: This form of isomerism arises because of the difference in the nature of the carbon chain (that is straight or branched) which makes the
what is atomic mass?
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