The correct code for stability, of oxidation states for given cations is I. Pb2+>Pb4+,Tl+<Tl3+ II. Bi3+<Sb3+,Sn2+<Sn4+ III. Pb2+>Pb4+,Bi3+>Bi5+ IV. Tl3+<In3+,Sn2+>Sn4+ V. Sn2+<Pb2+,Sn4+>Pb4+ VI. Sn2+<Pb2+,Sn4+<Pb4+

Question

The correct code for stability, of oxidation states for given cations is
$I . P b^{2 +} > P b^{4 +}, T l^{+} < T l^{3 +}$

$II . B i^{3 +} < S b^{3 +}, S n^{2 +} < S n^{4 +}$

$III . P b^{2 +} > P b^{4 +}, B i^{3 +} > B i^{5 +}$

$IV . T l^{3 +} < I n^{3 +}, S n^{2 +} > S n^{4 +}$

$V . S n^{2 +} < P b^{2 +}, S n^{4 +} > P b^{4 +}$

$VI . S n^{2 +} < P b^{2 +}, S n^{4 +} < P b^{4 +}$

V and VI

I, III and VI

III and V

II and IV

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