What type of oxide would aluminium form ?

E O_{3}

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E_{3} O_{2}

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E_{2} O_{3}

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Solution

The correct option is C $E_{2} O_{3}$
The most commonly found oxide of $A l$ is $A l_{2} O_{3}$ (Aluminium Oxide).

Valency of Al is 3 while valency of oxygen is 2.

So by using criss-cross formula, the formula will be $A l_{2} O_{3}$

Option C is correct.

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