214.What is the nature of crystal defect produced when sodium chloride is doped with MgCl2?
2Na+ will replaced by Mg2+ ion to maintain electrical neutrality thus ahole created for lattice site for every Mg2+ ion introduce thus the defect produced will schottky defect
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215.What happens when a ferromagnetic substance is subjected to high temperature?
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216.Name a substance which on addition to AgCl causes cation vacancy in it.
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217.What makes alkali metal halides sometimes coloured, which are otherwise colourless?
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218.Define the term ‘amorphous’.
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219.Which point defect lowers the density of a crystal?
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220.What is coordination number of a metal atom in ccp structure?