Show the chemical properties of aluminium, Chemistry

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Q. Show the chemical properties of Aluminium?

Aluminium has a very high affinity for oxygen; this is reflected in high exothermic heat of formation of Al203 (-1676 kJ mol-1). This allows aluminium to extract  oxygen from other metal oxides, and forms the basis of Goldschmidt's  aluminothermic process for Ca, Sr, Ba, Mn, Cr, Mo, etc:

3Mn02 + 4Al --------------------------------->+ 2AI2, 03 + 3Mn

Fe203 + 2Al --------------------------------->Al2, O3, + 2Fe (l)


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