Column - I and Column - II contains four emtries each. Entries of Column -I are to be matched with some entries of Column - II . One or more than one entries of Column -I may have the matching with the same entries of Column - II.
`{:("column-I","column-II"),("(A) Coagultation ","(P) Due to persence of charge "),("(B) Electrophoresis ",(Q) " Due to scattering of light "),("(C) tyndall effect","(R) Due to netralization of charge "),("(D)Brownian movement","(S) Due to impact of the molecules of the dis-persion medium with colloidal particles "):}`

Answer

To solve the matching question between Column - I and Column - II, let's analyze each term in Column - I and find its corresponding match in Column - II step by step.

### Step 1: Analyze Coagulation
- **Coagulation** refers to the process where colloidal particles aggregate and settle out of the dispersion. This process often occurs due to the neutralization of charges on the colloidal particles.
- **Match:** Coagulation (A) corresponds to **Due to neutralization of charge (R)**.

### Step 2: Analyze Electrophoresis
- **Electrophoresis** is a technique used to separate charged particles in a fluid under the influence of an electric field. It helps to determine the charge of the colloidal particles.
- **Match:** Electrophoresis (B) corresponds to **Due to presence of charge (P)**.

### Step 3: Analyze Tyndall Effect
- **Tyndall Effect** is the scattering of light by colloidal particles. It is observed when a beam of light passes through a colloidal solution, making the path of the light visible.
- **Match:** Tyndall Effect (C) corresponds to **Due to scattering of light (Q)**.

### Step 4: Analyze Brownian Movement
- **Brownian Movement** is the random motion of colloidal particles suspended in a fluid, which is caused by the impact of molecules of the dispersion medium colliding with the particles.
- **Match:** Brownian Movement (D) corresponds to **Due to impact of the molecules of the dispersion medium with colloidal particles (S)**.

### Final Matches
- (A) Coagulation → (R) Due to neutralization of charge
- (B) Electrophoresis → (P) Due to presence of charge
- (C) Tyndall Effect → (Q) Due to scattering of light
- (D) Brownian Movement → (S) Due to impact of the molecules of the dispersion medium with colloidal particles

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