Passing `H_2 S` through nitric acid produces

Options

A. plastic sulphur
B. monoclinic sulphur
C. rhombic sulphur
D. amorphous sulphur

Explanation

To solve the question of what happens when hydrogen sulfide (H₂S) is passed through nitric acid (HNO₃), we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Reactants**: The reactants in this reaction are hydrogen sulfide (H₂S) and nitric acid (HNO₃).

2. **Determine the Reaction Type**: This is a redox reaction where H₂S acts as a reducing agent and HNO₃ acts as an oxidizing agent.

3. **Write the Balanced Chemical Equation**:
- The balanced equation for the reaction is:
\[ 3 H_2S + 2 HNO_3 \rightarrow 3 S + 2 NO + 4 H_2O \]
- In this reaction, H₂S is oxidized to sulfur (S), while nitric acid is reduced to nitrogen monoxide (NO).

4. **Identify the Products**: From the balanced equation, the products of the reaction are:
- Sulfur (S)
- Nitrogen monoxide (NO)
- Water (H₂O)

5. **Note on Sulfur Form**: The sulfur produced in this reaction can be in colloidal or amorphous form, meaning it is not in a crystalline state.

6. **Final Answer**: Therefore, when H₂S is passed through nitric acid, the products formed are sulfur (in colloidal form), nitrogen monoxide, and water.

### Final Answer:
The products of passing H₂S through nitric acid are sulfur (in colloidal form), nitrogen monoxide, and water.

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