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Reactions of Alkaline earth metals with oxygen: Write the reactions of any two elements of group II A with oxygen. Ans. Alkaline earth metals react with oxygen to form corr
has gold a chemical proporties show/
Classification of polymers - Fibres These are the polymers that comprise strong intermolecular forces among the chain. These forces are either hydrogen bonds or dipole-dipole i
Melting point - physical charterstics of monocarboxylic acids (a) The melting points of carboxylic acids do not change smoothly from one member to other member. (b) The melt
CATALYSTS A catalyst is a species that speeds up a chemical reaction but is not itself consumed. Catalysts do not change the thermodynamics of the position of equilibrium or a
Electron occupies the available orbital singly before pairing in any one orbital occurs, it is : (1) Pauli's exclusion principle (2) Hund's Rule (3) Heisenberg's principle
Describe the mechanism of ferromagnetism Ferromagnetism is the basic mechanism by which certain materials (like iron) form permanent magnets or/and exhibit strong interactions
what is surface chemistry?
If an electron has spin quantum number of +1/2 and a magnetic quantum number of -1 , it cannot be presented in an: (1) d -orbital (2) f -orbital (3) p -orbital (4)s-
Why rate of reaction in zero order is independent of concentration? Solution) Where r is the reaction rate and k is the reaction rate coefficient with units of time / concentrat
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