Match the following `{:(" Column -I"," Column -II "),("(A) Aerosol"," (p) Optical property"),("(B) Emulsion", " (q) Electrical property"),("(C) Tyndall effect"," (r) Smoke"),("(D) Dialysis"," (s) Medicines"):}`

Answer

To solve the matching question, we will analyze each term in Column I and find the most appropriate match from Column II.

### Step-by-Step Solution:

1. **Identify Aerosol**:
- An aerosol is a colloid in which solid or liquid particles are dispersed in a gas.
- From Column II, the option that describes aerosol is **(R) Smoke**. Smoke consists of tiny solid and liquid particles dispersed in air.
- **Match**: (A) Aerosol → (R) Smoke

2. **Identify Emulsion**:
- An emulsion is a mixture of two or more immiscible liquids. Common examples include creams and ointments used in medicines.
- From Column II, the option that corresponds to emulsion is **(S) Medicines**. Emulsions are often used in medicinal products.
- **Match**: (B) Emulsion → (S) Medicines

3. **Identify Tyndall Effect**:
- The Tyndall effect refers to the scattering of light by particles in a colloid or particles in a very fine suspension. This effect is related to the optical properties of the medium.
- From Column II, the option that relates to the Tyndall effect is **(P) Optical property**.
- **Match**: (C) Tyndall effect → (P) Optical property

4. **Identify Dialysis**:
- Dialysis is a process used to remove waste products from a colloidal solution by diffusion. It often involves applying an electric field to enhance the process.
- From Column II, the option that corresponds to dialysis is **(Q) Electrical property**, as the application of an electric field indicates an electrical property.
- **Match**: (D) Dialysis → (Q) Electrical property

### Final Matches:
- (A) Aerosol → (R) Smoke
- (B) Emulsion → (S) Medicines
- (C) Tyndall effect → (P) Optical property
- (D) Dialysis → (Q) Electrical property

### Summary of Matches:
- (A) → (R)
- (B) → (S)
- (C) → (P)
- (D) → (Q)