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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.
Principal, azimuthal and magnetic quantum numbers are respectively related to: (1) Size, shape and orientation (2) Shape, size and orientation (3) Size, orientation and s
Applications of hyperconjugation (A) Carbon-carbon double bond size in alkenes: As we know previously that the more is the number of resonating structures, the very much will
If n= 3 , then the value of which is incorrect: (1) 0 (2) 1 (3) 2 (4)3 Ans: 3
how to write research design in experimental research
The nature of bonding in graphite is: (1) Covalent (2) Ionic (3) Metallic (4) Coordinate Ans: Covalent
Cast iron is not appreciably malleable at any temperature as cast. The carbon in cast irons may be present in the form of iron carbide or free graphite. White cast iron contains ce
Q. What is Atomic emission spectra? Atomic emission spectra while atoms of an element in the gaseous phase are excited by an input of energy such as that from a high-voltage
what are the physical properties of acetic acid?
Aldehyde is a carbonyl compound in which one valency of carbonyl carbon is satisfied by hydrogen atom and other by a alkyl group.
An e - has magnetic quantum number as 3, what is its principal quantum number: (1) 1 (2) 2 (3) 3 (4) 4 Ans: 4
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