\[ \mathrm{Na} \xrightarrow{\mathrm{H}_{2} \mathrm{O}} \mathrm{A} \xrightarrow{\mathrm{CO}_{2}} ....
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\[
\mathrm{Na} \xrightarrow{\mathrm{H}_{2} \mathrm{O}} \mathrm{A} \xrightarrow{\mathrm{CO}_{2}} \mathrm{~B} \xrightarrow{\mathrm{SO}_{2}} \mathrm{C}
\]
\( \mathrm{P} \)
W
Oxidation number of each ' \( \mathrm{S} \) ' atom in compound \( \mathrm{D} \) :
(1) \( +2,+2 \)
(2) \( +4,0 \)
(3) \( +6,-2 \)
(4) \( +5,-1 \)
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