Which of the following statement(s) is/are correct, if intermolecular forces in liquids A, B and C are in the order of` A lt B lt C` ?

Options

A. B evaporates more readily than A
B. B evaporates more readily than C
C. A evaporate more readily than C
D. all evaporates at same rate at same temperature.

Answer

To solve the question regarding the intermolecular forces in liquids A, B, and C, we need to analyze the implications of the given order of intermolecular forces: A > B > C.

### Step-by-Step Solution:

1. **Understanding Intermolecular Forces**:
- Intermolecular forces are the forces of attraction between molecules. The stronger these forces, the more energy is required to separate the molecules, which affects properties like boiling point and evaporation.

2. **Interpreting the Order**:
- Given the order A > B > C, it indicates that liquid A has the strongest intermolecular forces, followed by liquid B, and liquid C has the weakest intermolecular forces.

3. **Effect on Evaporation**:
- Evaporation occurs when molecules at the surface of a liquid gain enough energy to overcome intermolecular forces and escape into the vapor phase.
- Therefore, a liquid with weaker intermolecular forces will evaporate more readily than a liquid with stronger intermolecular forces.

4. **Comparing Evaporation Rates**:
- Since A has the strongest intermolecular forces, it will evaporate the least readily.
- Liquid B, with intermediate forces, will evaporate more readily than A but less readily than C.
- Liquid C, having the weakest intermolecular forces, will evaporate the most readily.

5. **Evaluating the Statements**:
- **Statement 1**: "B evaporates more readily than A."
- This is **incorrect** because A has stronger forces than B, so A evaporates more readily than B.
- **Statement 2**: "B evaporates more readily than C."
- This is **correct** because C has weaker forces than B, so B evaporates less readily than C.
- **Statement 3**: "A evaporates more readily than C."
- This is **incorrect** because C has weaker forces than A, so A evaporates less readily than C.
- **Statement 4**: "B and C evaporate at the same rate at the same temperature."
- This is **incorrect** because their evaporation rates depend on their intermolecular forces, which are different.

6. **Conclusion**:
- The correct statements are: **B evaporates more readily than C**.

### Final Answer:
The correct statement is **B**.