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(a) Based on the nature of intermolecular forces, classify the following solids: Benzene, Silver. (b) AgCl shows Frenkel defect while NaCl does not. Give reason. ( c) What type of semiconductor is formed when Ge is doped with Al? |
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Answer» Solution :(a) Benzene: MOLECULAR solid, Silver: metallic solid. AGCL shows Frenkel DEFECT, while NaCl does not, this is because size of `Ag^(+)` ion is smaller than `Na^(+)` ion. So, `Ag^(+)` ion can easily fit into interstitial site of crystal lattice while `Na^(+)` does not. ( c) p-type semiconductor is formed as Al is TRIVALENT (group-13 ELEMENT). |
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