When \( \mathrm{KMnO}_{4} \) is heated then which of the \( \mathrm{P} \) following compound is ...

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When \( \mathrm{KMnO}_{4} \) is heated then which of the
\( \mathrm{P} \)
following compound is formed:
W
(1) \( \mathrm{K}_{2} \mathrm{MnO}_{4}+\mathrm{MnO}_{2} \)
(2) \( \mathrm{K}_{2} \mathrm{MnO}_{4}+\mathrm{MnO} \)
(3) \( \mathrm{MnO}_{2}+\mathrm{MnO} \)
(4) No change
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