Among the following,the number of elements sh | vedclass

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(B) The elements listed are $O, Cl, F, N, P, Sn, Tl, Na, Ti$. $F$ (Fluorine) always shows $-1$ oxidation state. $Na$ (Sodium) always shows $+1$ oxidat

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$2$

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(B) The elements listed are $O, Cl, F, N, P, Sn, Tl, Na, Ti$. $F$ (Fluorine) always shows $-1$ oxidation state. $Na$ (Sodium) always shows $+1$ oxidation state. Other elements show variable oxidation states: $O$ $(-2, -1, +2)$,$Cl$ $(-1, +1, +3, +5, +7)$,$N$ ($-3$ to $+5$),$P$ ($-3$ to $+5$),$Sn$ $(+2, +4)$,$Tl$ $(+1, +3)$,$Ti$ $(+2, +3, +4)$. Thus,only $2$ elements ($F$ and $Na$) show a single non-zero oxidation state.

Among the following,the number of elements showing only one non-zero oxidation state is $O, Cl, F, N, P, Sn, Tl, Na, Ti$.

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