Which of the following compounds will react with `NaHCO_(3)` solution to give sodium salt and carbon dioxide?

Options

A. Acetic acid
B. n-Hexanol
C. Phenol
D. both (b) and (c).

Answer

To determine which of the compounds will react with sodium bicarbonate (NaHCO₃) to produce a sodium salt and carbon dioxide (CO₂), we need to consider the nature of the compounds in question. The key point is that only acids that are stronger than carbonic acid (H₂CO₃) will react with NaHCO₃ to release CO₂.

### Step-by-Step Solution:

1. **Identify the Compounds**: List the compounds provided in the question. For this example, let's assume the compounds are acetic acid (CH₃COOH), hexanol (C₆H₁₄O), phenol (C₆H₅OH), and a few others.

2. **Understand the Reaction**: The reaction between an acid and sodium bicarbonate is as follows:
\[ \text{Acid} + \text{NaHCO}_3 \rightarrow \text{Sodium Salt} + \text{H}_2\text{CO}_3 \rightarrow \text{Sodium Salt} + \text{H}_2\text{O} + \text{CO}_2 \]
Here, the acid donates a proton (H⁺) to the bicarbonate ion (HCO₃⁻), forming carbonic acid (H₂CO₃), which then decomposes into water (H₂O) and carbon dioxide (CO₂).

3. **Compare Acid Strengths**: Compare the acid strength of each compound with that of carbonic acid (H₂CO₃).
- Acetic acid (CH₃COOH) is a weak acid but stronger than carbonic acid.
- Hexanol (C₆H₁₄O) is an alcohol and does not act as an acid.
- Phenol (C₆H₅OH) is also a weak acid but weaker than carbonic acid.

4. **Determine Reactivity**: From the comparison:
- **Acetic Acid**: Will react with NaHCO₃ to produce sodium acetate, water, and CO₂.
- **Hexanol**: Will not react as it is not acidic.
- **Phenol**: Will not react as it is weaker than carbonic acid.

5. **Conclusion**: The only compound that will react with NaHCO₃ to produce a sodium salt and CO₂ is **acetic acid (CH₃COOH)**.

### Final Answer:
**Acetic acid (CH₃COOH)** will react with NaHCO₃ to give sodium acetate and carbon dioxide.