In group -15,as we move from N to Bi,the M_2O | vedclass

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(C) In group $-15$,the metallic character increases as we move down the group from $N$ to $Bi$. Oxides of non-metals are acidic,while oxides of metals

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more basic

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(C) In group $-15$,the metallic character increases as we move down the group from $N$ to $Bi$. Oxides of non-metals are acidic,while oxides of metals are basic. Since the metallic character increases down the group,the acidic nature of $M_2O_3$ type oxides decreases and the basic nature increases. Therefore,the oxides become more basic as we move from $N$ to $Bi$.

In group $-15$,as we move from $N$ to $Bi$,the $M_2O_3$ type oxides become ...... .

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