$PbO_2 \to PbO \; \; \; \; \; \Delta G_{298} < 0$ <br> $SnO_2 \to SnO \; \; \; \; \; \Delta G_{298} > 0$ Most probable oxidation state of Pb & Sn will be :

Question

( A ) $Pb^{+4}, Sn^{+4}$
( B ) $Pb^{+4}, Sn^{+2}$
( C ) $Pb^{+2}, Sn^{+4}$
( D ) $Pb^{+2}, Sn^{+2}$