Which statement is incorrect

Options

A. Phenol is a weak acid
B. Phenol is an aromatic compound
C. Phenol liberates `CO_2 and Na_2CO_3` solution
D. Phenol is soluble in NaOH

Explanation

To determine which statement is incorrect regarding phenol, let's analyze the statements one by one:

1. **Phenol is a weak acid.**
- This statement is **true**. Phenol (C6H5OH) can donate a proton (H+) to form phenoxide ion (C6H5O-), which makes it a weak acid.

2. **Phenol can be liberated from CO2 from Na2CO3 solutions.**
- This statement is **false**. Phenol is not sufficiently acidic to be liberated from sodium carbonate (Na2CO3) as it cannot displace CO2 from the carbonate. Sodium carbonate can react with stronger acids, but phenol does not have the acidity required for this reaction.

3. **Phenol is soluble in NaH.**
- This statement is **true**. Sodium hydride (NaH) reacts with phenol to form phenoxide ion, indicating that phenol is indeed soluble in NaH.

Based on the analysis, the incorrect statement is the second one: "Phenol can be liberated from CO2 from Na2CO3 solutions."

### Summary of Steps:
1. Identify the statements regarding phenol.
2. Evaluate each statement for its accuracy.
3. Determine which statement is incorrect based on the properties of phenol.