The product which is not formed on heating potassium permanganate is

Options

A. (A) `K_2MnO_4`
B. (B) `MnO_2`
C. (C)`O_2`
D. (D)`MnO_4`

Answer

To solve the question regarding the products formed when heating potassium permanganate (KMnO4), we can follow these steps:

### Step 1: Understand the thermal decomposition of KMnO4
Potassium permanganate (KMnO4) undergoes thermal decomposition when heated. This means that the compound breaks down into simpler substances.

### Step 2: Identify the products of the decomposition
When KMnO4 is heated, it decomposes to form:
- Potassium manganate (K2MnO4)
- Manganese dioxide (MnO2)
- Oxygen gas (O2)

### Step 3: Analyze the options provided
The question asks which product is **not** formed during the heating of potassium permanganate. The options given are:
- K2MnO4
- MnO2
- O2
- MnO4

### Step 4: Determine which product is not formed
From our understanding of the decomposition reaction:
- K2MnO4 is formed.
- MnO2 is formed.
- O2 is formed.
- MnO4 is not formed as a standalone product; instead, it is a part of the original compound (KMnO4).

### Conclusion
The product that is not formed on heating potassium permanganate is **MnO4**.

### Final Answer
**MnO4** is the product which is not formed on heating potassium permanganate.

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