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Allotropes of Phosphorus

What products...

Question

What product(s) are expected from the combustion of aluminium?

A l O_{3}

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A l O

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{A l}_{3} O_{2}

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{A l}_{2} O_{3}

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Solution

The correct option is C ${A l}_{2} O_{3}$
Aluminium is used both as a commercially pure metal and as an alloy. In finely divided powder or dust form, aluminium and its alloys are combustible in the air and present a serious combustion explosion hazard. Aluminium will react violently with many chemicals.
The reaction of the combustion of aluminum in oxygen is
$4 A l + 3 O_{2} \to 2 A l_{2} O_{3}$

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