`AgNO_(3)` does not decompose where :

Options

A. U.V. radiation
B. Skin (human)
C. Water `25^(@)C`
D. Glucose

Explanation

To solve the question "AgNO₃ does not decompose where?", we can break down the reasoning step by step:

### Step 1: Understanding the Decomposition of AgNO₃
Silver nitrate (AgNO₃) can decompose under certain conditions. The decomposition reaction typically produces silver (Ag), nitrogen dioxide (NO₂), and oxygen (O₂).

### Step 2: Identifying Conditions for Decomposition
AgNO₃ can decompose when exposed to:
- Heat
- UV radiation (light)
- Reducing agents (like glucose)

### Step 3: Analyzing the Given Options
The options provided are:
1. UV radiation
2. Water
3. Glucose
4. Room temperature

### Step 4: Evaluating Each Option
- **UV radiation**: AgNO₃ will decompose in the presence of UV light.
- **Water**: At room temperature, AgNO₃ does not decompose in the presence of water.
- **Glucose**: As a reducing agent, glucose can facilitate the decomposition of AgNO₃.
- **Room temperature**: While AgNO₃ can decompose at elevated temperatures, it does not decompose at room temperature in the presence of water.

### Step 5: Conclusion
From the analysis, we conclude that AgNO₃ does not decompose in the presence of water at room temperature. Therefore, the correct answer is **water**.

### Final Answer
AgNO₃ does not decompose where: **Water**.

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