Which is true for an element R present in III | vedclass

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(C) Elements in group $III$ (or group $13$) typically exhibit a valency of $3$ due to their valence shell configuration of $ns^2 np^1$.When these elem

Vedclass · Accepted Answer

It forms $R_2O_3$

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(C) Elements in group $III$ (or group $13$) typically exhibit a valency of $3$ due to their valence shell configuration of $ns^2 np^1$.When these elements react with oxygen,they form oxides with the general formula $R_2O_3$,where $R$ is in the $+3$ oxidation state.For example,Aluminum $(Al)$ belongs to group $III$ and forms Aluminum oxide $(Al_2O_3)$.Therefore,the correct statement is that it forms $R_2O_3$.

Which is true for an element $R$ present in $III$ group of the periodic table?

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If the valency of $A$ is $3$ and $B$ is $2$,then the formula of the compound formed is:

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