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What is an alloy? Name the two types of alloy formed by transition elements. Give one example of a solid solution in relation to a smooth alloy.


An alloy is a blend of metals prepared by mixing the components. Alloys may be homogeneous solid solutions in which the atoms of one metal are distributed randomly among the atoms of the other.

 The two types of alloy formed by transition elements are (i) alloy steels and (ii) stainless steel. Nickel steel is an example of smooth alloys.
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Transition metals form a large number of interstitial compounds. Explain.
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Give one example of any compound in which the oxidation state of Ni is zero.
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What is meant by disproportionation of an oxidation state? Give an example.
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Cu2+ is more stable than Cu+, Explain.
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Why does V2O5 act as catalyst?
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Give two properties in which interstitial compounds differ from its elements.
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Transition metals usually form coloured ions, why?
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Why is copper sulphate pentahydrate coloured?

 
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Zn, Cd, Hg compounds are usually white. Explain.
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