decomposes on heating at 513 K to form along with

Question

decomposes on heating at 513 K to form  along with

Canvas Classes · Accepted Answer

Step 1 — Thermal decomposition of :

Step 2 — Verify oxidation states:
- Mn in : 
- Mn in :  (reduced by 1)
- Mn in :  (reduced by 3)
- O in : ; O in :  (oxidised)

This is a disproportionation-type decomposition where Mn is reduced and O is oxidised.

Step 3 — Products:
 (potassium manganate, green) and  (manganese dioxide, black) are formed along with .

Answer: Option (4) —  &

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