Choose the incorrect formula out of the four | vedclass

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(B) To determine the correct formula,we analyze the valency of element $X$ in each compound.$X_2O_3$ implies $X$ has a valency of $+3$ $(X^{3+})$ and

Vedclass · Accepted Answer

$X_2Cl_3$

Vedclass · Answer

(B) To determine the correct formula,we analyze the valency of element $X$ in each compound.$X_2O_3$ implies $X$ has a valency of $+3$ $(X^{3+})$ and $O$ has a valency of $-2$ $(O^{2-})$,which is chemically valid.$X_2Cl_3$ implies $X$ has a valency of $+3$ $(X^{3+})$ and $Cl$ has a valency of $-2$ $(Cl^{2-})$. Since the chloride ion is $Cl^-$,this formula is incorrect.$X_2(SO_4)_3$ implies $X^{3+}$ and $SO_4^{2-}$,which is chemically valid.$XPO_4$ implies $X^{3+}$ and $PO_4^{3-}$,which is chemically valid.Therefore,$X_2Cl_3$ is the incorrect formula. The correct formula for the chloride of $X$ would be $XCl_3$.

Choose the incorrect formula out of the four compounds for an element $X$ below.

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