Question

an element 'x' forms oxide with formula x2o3 ​

Answer 1

Hey mate ,

'X' element is Aluminium .

There can be others also ....

Since , X have the valency 3 by cross

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Answer 2

Heyy...

We know the valency of Oxygen is 2. Therefore for the chemical formula to be X2O3, the valency of X must be 3. Therefore the formula of its chloride will be XCl3.

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