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Q. What is Alloys?
Metals have a property of combining with other metals to form alloys. An alloy may be defined as a solid which is formed by a combination of two or more metallic elements, but it itself has metallic properties. Most alloys are solid solutions. For example, brass an alloy of copper and zinc is a solid solution of zinc in copper. In brass some of the copper atoms of face-centred cubic lattice are randomly replaced by zinc atoms. Similarly, bronze an alloy of copper and tin is a solid solution of tin in copper. But not all alloys are solid solutions. Some alloys, such as bismuth-cadmium alloys are heterogeneous mixtures containing tiny crystals of the constituent metals. Others such as MgCu2 are intermetallic compounds which contain metals combined in definite proportions.
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On the basis of electrical conductivity the solids can be broadly classified into three types: (a) Metals (b) Insulators (c) Semiconductors Electrical conductiv
Atomic spectroscopy: Atomic spectroscopy is the oldest instrumental method of elemental analysis. The origin of these methods dates back to the times of Bunsen and Kirchhoff i
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Q. Show the basic stucture of Esters? Ans. Esters have the general formula RCOOR'. Both R and R' are alkyl groups. Esters have the ester functional group: Anima
Although fractose does not have an aldehydic group, it reacts with Fehling solution Explain why? Ans) Fructose is a ketone first we cnvert it into aldehyde by reacting fructse
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Lithium and beryllium markedly differ from other members of their respective groups? Read more: http://wiki.answers.com/Q/Lithium_and_beryllium_markedly_differ_from_other_members
Limitations of second law of thermodynamics
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