Three of the following four are alike in a certain way and so form a group. Which is the one that does not belong to that group ?

Options

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

Answer

To solve the problem of identifying which of the four options does not belong to the group, we will analyze each option step by step.

### Step 1: List the options
The options provided are:
1. Copper
2. Zinc
3. Brass
4. Aluminium

### Step 2: Identify the nature of each option
- **Copper**: This is a pure metal.
- **Zinc**: This is also a pure metal.
- **Brass**: This is an alloy made from a combination of copper and zinc.
- **Aluminium**: This is a pure metal.

### Step 3: Group the options based on their characteristics
From the analysis:
- Copper, Zinc, and Aluminium are all pure metals.
- Brass is an alloy, which is different from the other three options.

### Step 4: Determine the odd one out
Since Copper, Zinc, and Aluminium are all metals, while Brass is an alloy, the option that does not belong to the group is Brass.

### Conclusion
The option that does not belong to the group is **Option 3: Brass**.

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