Homework Answers
Solution:
A) GeAs : Germanium Arsenide
Physical : Crystalline solid used in semiconductor.
Chemical properties:
Due to an extra electron of As, it behaves as extrinsic semiconductor.
B) Al2O3 :Aluminium oxide
Physical properties: White crystalline odorless powder.
Chemical properties: It is an ionic compound due to large difference in electronegativity of O and Al. It is amphoteric oxide.
C) N2O3 : Dinitrogen trioxide
Physical properties: It is blue liquid and has an unpleasant odor.
Chemical properties: It is covalent compound. It is an oxyacid of nitrogen. It dissolved in water and form weak acid HNO2.
D) FeTiW: Intermetalic compound
Physical : it is cystalline solid alloy.
Chemical properties: It is formed by the metalic bonding.
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1. Define physical and chemical properties and give at
least 3 examples of each type of property.
2. Which substances in Data Table 1 have melting points
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