KCET · Chemistry · d and f Block Elements
On heating potassium permanganate, one of the following compound is not obtained:
- A \( \mathrm{O}_{2} \)
- B \( \mathrm{MnO} \)
- C \( \mathrm{MnO}_{2} \)
- D \( \mathrm{K}_{2} \mathrm{MnO}_{4} \)
Answer & Solution
Correct Answer
(B) \( \mathrm{MnO} \)
Step-by-step Solution
Detailed explanation
Heating of potassium permanganate salt at \( 513 \mathrm{~K} \)
\( 2 \mathrm{KMnO}_{4}^{-}->\mathrm{K}_{2} \mathrm{MnO}_{4}+\mathrm{MnO}_{2}+\mathrm{O}_{2} \)
Hence, on heating of potassium permanganate, MnO will not be obtain.
\( 2 \mathrm{KMnO}_{4}^{-}->\mathrm{K}_{2} \mathrm{MnO}_{4}+\mathrm{MnO}_{2}+\mathrm{O}_{2} \)
Hence, on heating of potassium permanganate, MnO will not be obtain.
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