P
\[
(z) \longrightarrow \mathrm{MnO}_{2}
\]
W
For above reaction \( x, y, z \) are respectively...
P
\[
(z) \longrightarrow \mathrm{MnO}_{2}
\]
W
For above reaction \( x, y, z \) are respectively :
(a) \( \mathrm{H}_{2} \mathrm{O}_{2} / \mathrm{H}^{+}, \mathrm{H}_{2} \mathrm{O}_{2} / \mathrm{OH}^{-}, \mathrm{H}_{2} \mathrm{O}_{2} / \mathrm{OH}^{-} \)
(b) \( \mathrm{H}_{2} \mathrm{O}_{2} / \mathrm{OH}^{-}, \mathrm{H}_{2} \mathrm{O}_{2} / \mathrm{OH}^{-}, \mathrm{H}_{2} \mathrm{O}_{2} / \mathrm{H}^{+} \)
(c) \( \mathrm{H}_{2} \mathrm{O}_{2} / \mathrm{OH}^{-}, \mathrm{H}_{2} \mathrm{O}_{2} / \mathrm{H}^{+}, \mathrm{H}_{2} \mathrm{O}_{2} / \mathrm{H}^{+} \)
(d) \( \mathrm{H}_{2} \mathrm{O}_{2} / \mathrm{H}^{+}, \mathrm{H}_{2} \mathrm{O}_{2} / \mathrm{H}^{+}, \mathrm{H}_{2} \mathrm{O}_{2} / \mathrm{OH}^{-} \)
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