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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.
Physical properties of Ethers - Boiling points and Solubility (a) Boiling points: Boiling points of ethers are very much lower as compared to those of isomeric alcohols, althou
Be's 4th electron will have four quantum numbers: n l m s (1) 1 0 0 +1/2 (2) 1 1 +1 +1/2
The maximum number of electrons accommodated in 5f orbitals are: (1) 5 (2) 10 (3) 14 (4) 18 Ans: 14
Electrophilic substitutions reactions: Electrophilic substitution includes the attack by an electrophile. It is denoted as S E ( S denotes substitution and E denotes elct
applications and classifications
Q. What are the physical properties of solids? Ans. Most solids eventually melt when heated. This is because the particles gain enough energy to exceed the attractive for
What are dextrorotary compounds and Levi rotary compounds? Ans) Compounds that rotate the plane polarized light to the right are known as Dextro rotatory compounds and that rota
Q. Show the Occurrence of Metals? Earth's crust and sea are the two main sources of metals. In the earth's crust metals occur both in the combined state in the form of minerals
Define the process of Metallization - fabrication processes It's the process of providing electrical connections between different parts of the circuit. Aluminium is common
The specific heat of a substance is the amount of energy required to raise one gram of the material by one degree centigrade. But what happens if you get an ice cube too hot? It i
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