Which metal is a liquid at room temperature?

Options

A. Aluminium
B. Mercury
C. Copper
D. Brass

Answer

To determine which metal is a liquid at room temperature, we can follow these steps:

### Step 1: Understand the Question
We need to identify the metal among the given options that remains in a liquid state at room temperature.

### Step 2: List the Options
The options provided are:
- Aluminum
- Mercury
- Copper
- Brass

### Step 3: Analyze Each Option
- **Aluminum**: This metal is solid at room temperature.
- **Mercury**: This is the only metal that is liquid at room temperature.
- **Copper**: This metal is also solid at room temperature.
- **Brass**: Brass is an alloy (a mixture of metals) and is solid at room temperature.

### Step 4: Identify the Correct Answer
From the analysis, we can conclude that:
- The only metal that is liquid at room temperature is **Mercury**.

### Step 5: Finalize the Answer
Therefore, the correct answer to the question is **Mercury**.

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