Question

If molecular formula of the chloride of an element x is xcl 3 then molecular formula of its oxide will be

Answer 1

Molecular formula of the chloride of an element X is XCl3
=> Valency of X=3+
then molecular formula of its oxide will be
X2O3.


OR

We can identify X as Aluminium and can proceed.



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Answer 2

AnsX2O

Explanation:

In xcl, the valence of cl will be 1. Therefore the valency of x will be also 1

now in the second case, o has a valency of 2

therfore

the formula will be X2cl

the element is also hydrogen