A basic salt that is used in daily life is

Options

A. sodium acetate
B. sodium chloride
C. ammonium sulphate
D. sodium carbonate

Answer

To determine a basic salt that is commonly used in daily life, we can analyze the options provided in the question. Let's go through the process step by step:

### Step 1: Identify the Salts
We need to identify the salts given in the question. The salts mentioned in the transcript are:
1. Sodium Acetate (CH3COONa)
2. Sodium Chloride (NaCl)
3. Ammonium Sulfate (NH4SO4)
4. Sodium Carbonate (Na2CO3)

### Step 2: Determine the Nature of Each Salt
Next, we will determine whether each salt is acidic, neutral, or basic by analyzing the ions produced when they dissolve in water.

1. **Sodium Acetate (CH3COONa)**:
- Dissociates into CH3COO⁻ and Na⁺.
- CH3COO⁻ is the conjugate base of acetic acid (weak acid), making this salt basic.

2. **Sodium Chloride (NaCl)**:
- Dissociates into Na⁺ and Cl⁻.
- Both ions come from strong acid (HCl) and strong base (NaOH), making this salt neutral.

3. **Ammonium Sulfate (NH4SO4)**:
- Dissociates into NH4⁺ and SO4²⁻.
- NH4⁺ is the conjugate acid of ammonia (weak base), making this salt acidic.

4. **Sodium Carbonate (Na2CO3)**:
- Dissociates into 2 Na⁺ and CO3²⁻.
- CO3²⁻ is the conjugate base of carbonic acid (weak acid), making this salt basic.

### Step 3: Identify Common Usage
Now, we need to identify which of these basic salts is commonly used in daily life.

- **Sodium Acetate**: Used in some food preservatives but not very common in daily life.
- **Sodium Chloride**: Commonly known as table salt, widely used in cooking and food preservation.
- **Ammonium Sulfate**: Primarily used as a fertilizer, not common in daily cooking.
- **Sodium Carbonate**: Also known as washing soda, used in cleaning products and laundry.

### Conclusion
Among the options, **Sodium Carbonate (Na2CO3)** and **Sodium Chloride (NaCl)** are basic salts. However, Sodium Chloride (table salt) is the most common salt used in daily life.

**Final Answer**: Sodium Chloride (NaCl) is a basic salt that is used in daily life.

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