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Determine about the Antiferromagnetic materials
Antiferromagnetic materials are materials in which almost all magnetic dipoles are linked up antiparallel to each other. Its susceptibility increases with increase in temperature, until a critical temperature is reached, beyond which it becomes paramagnetic. A number of the materials are MnF2, MnO2, MnS. These too are rarely used in electrical application.
Electronic configuration of ferric ion is: (1) [Ar] 3d 5 (2) [Ar] 3d 7 (3) [Ar] 3d 3 (4) [Ar] 3d 8 Ans: [Ar] 3d 5
Q. Show the diffrent kind of matter? Liquid matter has a specific volume like a solid but flows and takes the shape of its container. A liquid is incompressible for the reaso
On mixing acetone and chloroform, a reduction in total volume occurs. What kind of deviations from ideal behavior for solutions is given in this case and why?
Among the following for which one mathematical expression γ= h/p stands: (1) De Broglie equation (2) Einstein equation (3) Uncertainty equation (4) Bohr equation A
structure and uses
Q. Explain Ellingham Diagrams? Ellingham studied the variation of standard free energy change for the formation of a number of compounds, e.g., oxides, sulphides and chlorides,
Stephen reaction - Aldehydes and Ketones Benzaldehyde is acquired by partial reduction of phenyl cyanide along with stannous chloride and passing dry HCl gas in ether solution
group1 metal reacts execess of oxygen
is vinegar has a pungent odor. is it chemical or physical property?
Caculate the amount of heat energy needed to raise the temp. Of the water in a 40 gal (151-kg) home water heater from 19.o celcius (66.2 f) to 60.00 C (140.f
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