Acidified potassium permanganate is dropped over sodium peroxide taken in a round bottom flask at room tempreture, vigorus reaction takes place to procuce:

Options

A. hydrogen peroxide
B. mixture of hydrogen and oxygen
C. a colourless gas hydrogen
D. a colourless gas dioxygen.

Explanation

To solve the question regarding the reaction between acidified potassium permanganate and sodium peroxide, we can follow these steps:

### Step 1: Identify the Reactants
The reactants in this reaction are:
- Acidified potassium permanganate (KMnO4 in the presence of H2SO4)
- Sodium peroxide (Na2O2)

### Step 2: Write the Reaction
When potassium permanganate reacts with sodium peroxide in an acidic medium, the following reaction occurs:

\[ 2 \text{KMnO}_4 + 5 \text{Na}_2\text{O}_2 + 8 \text{H}_2\text{SO}_4 \rightarrow 2 \text{MnSO}_4 + 5 \text{Na}_2\text{SO}_4 + 8 \text{H}_2\text{O} + 5 \text{O}_2 \]

### Step 3: Analyze the Products
From the balanced equation, we can see that the products formed are:
- Manganese(II) sulfate (MnSO4)
- Sodium sulfate (Na2SO4)
- Water (H2O)
- Oxygen gas (O2)

### Step 4: Identify the Correct Answer
Among the options provided in the question, we need to identify the gas produced. The balanced equation shows that oxygen gas (O2) is produced in the reaction.

### Conclusion
The correct answer to the question is that the reaction produces a colorless gas, which is dioxygen (O2).