MCQ
The oxidation state of $I$ in ${H_4}IO_6^ - $ is
- ✓$+7$
- B$+5$
- C$+1$
- D$-1$
$4 + x - 12 = - \,1$; $x = - 1 + 8$$ = + \,7$.
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$(a)\ Pb^{+2} > Pb^{+4} , Tl^{+1} < Tl^{+3}$
$(b)\ Bi^{+3} < Sb^{+3 }, Sn^{+2} < Sn^{+4}$
$(c)\ Pb^{+2} > Pb^{+4} , Bi^{+3} > Bi^{+5}$
$(d)\ Tl^{+3} < In^{+3} , Sn^{+2} > Sn^{+4}$
$(e)\ Sn^{+24} < Pb^{+2} , Sn^{+4} > Pb^{+4}$
$(f)\ Sn^{+2} < Pb^{+2} , Sn^{+4} < Pb^{+4}$

