On addition of small amoung of `KMnO_(4)` to concentrated `H_(2)SO_(4)`, a green oily compound is obtained which is highly explosive in nature. Identify the compound from the following.

Options

A. `Mn_(2)O_(7)`
B. `MnO_(2)`
C. `MnSO_(4)`
D. `Mn_(2)O_(3)`

Explanation

To solve the question regarding the identification of the green oily explosive compound formed when potassium permanganate (KMnO4) is added to concentrated sulfuric acid (H2SO4), we can follow these steps:

### Step 1: Identify the Reactants
We start with the reactants: potassium permanganate (KMnO4) and concentrated sulfuric acid (H2SO4).

**Hint:** Look for the properties of the reactants and their common reactions.

### Step 2: Write the Reaction
When KMnO4 reacts with concentrated H2SO4, the following reaction occurs:
\[ \text{KMnO}_4 + \text{H}_2\text{SO}_4 \rightarrow \text{Mn}_2\text{O}_7 + \text{K}_2\text{SO}_4 + \text{H}_2\text{O} \]

**Hint:** Remember that KMnO4 is a strong oxidizing agent and reacts with concentrated acids.

### Step 3: Analyze the Products
From the reaction, we can see that the products include:
- Manganese(VI) oxide (Mn2O7)
- Potassium sulfate (K2SO4)
- Water (H2O)

**Hint:** Focus on the properties of the products formed, especially their color and explosiveness.

### Step 4: Identify the Green Oily Compound
Among the products, Mn2O7 is known to be a green oily liquid and is also highly explosive in nature. The other products, K2SO4 and water, do not match the description of being green or oily.

**Hint:** Recall the physical state and color of Mn2O7.

### Step 5: Conclusion
Thus, the green oily compound that is highly explosive in nature, formed from the reaction of KMnO4 with concentrated H2SO4, is manganese(VI) oxide (Mn2O7).

**Final Answer:** The compound is **Mn2O7**.