Sodium metal cannot be stroed under

Options

A. Kerosene
B. Toluene
C. Alcohol
D. Benzene

Explanation

To solve the question "Sodium metal cannot be stored under," we will analyze the properties of sodium and its reactions with various substances. Here’s the step-by-step solution:

### Step 1: Understand the nature of sodium metal
Sodium is an alkali metal and is known for its high reactivity, especially with moisture and air. This reactivity is due to its single electron in the outermost shell, which it readily loses to form a positive ion.

**Hint:** Remember that alkali metals are highly reactive and need special storage conditions to prevent reactions.

### Step 2: Identify common storage methods for sodium
Due to its reactivity, sodium is typically stored under inert substances that do not react with it. Common storage methods include using inert hydrocarbons such as:
- Kerosene
- Mineral oil
- Toluene
- Benzene

**Hint:** Think about what substances are used to prevent reactions with air and moisture.

### Step 3: Analyze the options given in the question
The question asks under which substance sodium cannot be stored. The options likely include:
1. Kerosene
2. Toluene
3. Benzene
4. Alcohol

Among these, kerosene, toluene, and benzene are inert hydrocarbons and do not react with sodium.

**Hint:** Focus on the properties of each option and their reactivity with sodium.

### Step 4: Evaluate the reactivity of sodium with alcohol
Sodium reacts with alcohol to form sodium alkoxide and hydrogen gas. This reaction is significant because it indicates that alcohol is not an inert substance for sodium storage. Therefore, sodium cannot be stored under alcohol.

**Hint:** Recall the chemical reactions that occur when sodium comes into contact with alcohol.

### Step 5: Conclude the answer
Based on the analysis, the substance under which sodium metal cannot be stored is **alcohol**.

**Final Answer:** Sodium metal cannot be stored under alcohol.