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

Options

A. Mist
B. Cloud
C. Rain
D. Vapour

Answer

To solve the problem of identifying which of the five options does not belong to the group, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Options**: The options given are:
- Option 1: Mist
- Option 2: Cloud
- Option 3: Rain
- Option 4: Vapor

2. **Analyze the Options**: We need to determine how these options are related. All of these terms are associated with water in different forms.

3. **Classify the Forms of Water**:
- Mist: This is a collection of tiny water droplets suspended in the air, which is a gaseous form.
- Cloud: Clouds are also made up of tiny water droplets or ice crystals, which is a gaseous form.
- Rain: Rain is liquid water that falls from the atmosphere.
- Vapor: Water vapor is the gaseous form of water.

4. **Determine the Group**: From the analysis, we can see that:
- Mist, Cloud, and Vapor are all forms of water in the gaseous state.
- Rain is the only form that is in the liquid state.

5. **Identify the Odd One Out**: Since Mist, Cloud, and Vapor are all gases, while Rain is liquid, we can conclude that Rain does not belong to the group.

6. **Final Answer**: Therefore, the option that does not belong to the group is **Option 3: Rain**.