\( \mathrm{X} \underset{\mathrm{OH}^{-}}{\stackrel{\mathrm{H}^{+}}{...

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\( \mathrm{X} \underset{\mathrm{OH}^{-}}{\stackrel{\mathrm{H}^{+}}{\rightleftharpoons}} \mathrm{Y} ; \mathrm{Y} \stackrel{\mathrm{SO}_{2}}{\longrightarrow} \mathrm{Z}+\mathrm{SO}_{4}^{2-} \)
P
W
\( \mathrm{X} \) and \( \mathrm{Y} \) are oxy anion of \( \mathrm{Cr} \) then oxidation state of
\( \mathrm{Cr} \) in \( \mathrm{X}, \mathrm{Y}, \mathrm{Z} \) will be respectively.
(1) \( +3,+6,+6 \)
(2) \( +6,+3,+6 \)
(3) \( +6,+6,+6 \)
(4) \( +6,+6,+3 \)
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