Read the given information and identify P, Q, R and S.
P: Has definite shape and volume
Q: Undergoes sublimation
R: Has definite volume but no definite shape
S: Does not have definite shape and definite volume S

Options

A. `{:(P,Q,R,S),("Rubber ball","Camphor","Air","Milk"):}`
B. `{:(P,Q,R,S),("Glass bowl","Common salt","Honey","Oxygen"):}`
C. `{:(P,Q,R,S),("Brick","Naphthalene","Milk","Air"):}`
D. `{:(P,Q,R,S),("Air","Sugar","Honey","Milk"):}`

Explanation

To solve the problem, we need to identify the substances P, Q, R, and S based on the descriptions provided:

1. **P: Has definite shape and volume**
- This characteristic is typical of solids. Solids have a fixed shape and a fixed volume.
- **Conclusion**: P is a solid.

2. **Q: Undergoes sublimation**
- Sublimation is the process where a solid changes directly into a gas without passing through the liquid state. A common example of a substance that undergoes sublimation is naphthalene (found in mothballs).
- **Conclusion**: Q is naphthalene.

3. **R: Has definite volume but no definite shape**
- This characteristic is typical of liquids. Liquids have a fixed volume but take the shape of their container.
- **Conclusion**: R is a liquid, such as milk or honey.

4. **S: Does not have definite shape and definite volume**
- This characteristic is typical of gases. Gases do not have a fixed shape or volume; they expand to fill their container.
- **Conclusion**: S is air (gas).

Now, summarizing our findings:
- P is a solid (e.g., brick).
- Q is naphthalene (which undergoes sublimation).
- R is a liquid (e.g., milk).
- S is air (gas).

**Final Identification:**
- P: Solid (e.g., brick)
- Q: Naphthalene (undergoes sublimation)
- R: Liquid (e.g., milk)
- S: Air (gas)