`{:("Column I",,"Column II"),((A) CH_(3)COONa,,(i) "Almost neutral"pH gt 7 "or "lt7),((B) NH_(4)CI,,(ii) "Acidic"pHlt7),((C)NaNO_(3) ,,(iii)"Alkaline "pH gt 7),((D) CH_(3)COONH_(4),,(iv)"Neutral "pH =7):}`

Options

A. `(A) to (iii) ,(B) to (ii) ,(C) to (iv) ,(D) to (i)`
B. `(A) to (ii),(B) to (iv) ,(C) to (i) ,(D) to (iii)`
C. `(A) to (i), (B) to (iii), (C) to (ii) , (D) to (iv)`
D. `(A) to (iv) ,(B) to (i) ,(C) to (iii) (D) to (ii)`

Explanation

To solve the problem, we need to analyze the salts given in Column I and determine their pH characteristics based on the nature of the acids and bases they are derived from.

### Step-by-Step Solution:

1. **Identify the Nature of Each Salt:**
- **(A) CH₃COONa (Sodium Acetate):**
- This salt is derived from acetic acid (a weak acid) and sodium hydroxide (a strong base).
- Since it is formed from a weak acid and a strong base, it will have a basic nature.
- **Conclusion:** pH > 7 (Alkaline)

2. **(B) NH₄Cl (Ammonium Chloride):**
- This salt is derived from ammonia (a weak base) and hydrochloric acid (a strong acid).
- Since it is formed from a strong acid and a weak base, it will have an acidic nature.
- **Conclusion:** pH < 7 (Acidic)

3. **(C) NaNO₃ (Sodium Nitrate):**
- This salt is derived from nitric acid (a strong acid) and sodium hydroxide (a strong base).
- Since both the acid and base are strong, the resulting salt will be neutral.
- **Conclusion:** pH = 7 (Neutral)

4. **(D) CH₃COONH₄ (Ammonium Acetate):**
- This salt is derived from acetic acid (a weak acid) and ammonia (a weak base).
- The pH of this salt can vary but is generally considered to be neutral, as the weak acid and weak base can partially neutralize each other.
- **Conclusion:** pH ≈ 7 (Neutral)

### Matching the Salts with Their pH Characteristics:
- (A) CH₃COONa → (iii) Alkaline (pH > 7)
- (B) NH₄Cl → (ii) Acidic (pH < 7)
- (C) NaNO₃ → (iv) Neutral (pH = 7)
- (D) CH₃COONH₄ → (i) Almost neutral (pH ≈ 7)

### Final Matching:
- A → iii
- B → ii
- C → iv
- D → i

### Summary of the Answer:
- A (CH₃COONa) matches with (iii) Alkaline
- B (NH₄Cl) matches with (ii) Acidic
- C (NaNO₃) matches with (iv) Neutral
- D (CH₃COONH₄) matches with (i) Almost neutral