The solution of acetic acid in benzene contains

Options

A. `CH_(3)COO^(-)`
B. `H_(2)PO_(3)^(-)`
C. `H_(2)PO_(2)^(-)`
D. `HPO_(4)^(2-)`

Answer

To solve the question regarding the solution of acetic acid in benzene, we can follow these steps:

### Step 1: Identify the Chemical Formula of Acetic Acid
Acetic acid is represented by the chemical formula CH₃COOH.

**Hint:** Remember that acetic acid is a carboxylic acid with one replaceable hydrogen atom.

### Step 2: Understand the Behavior of Acetic Acid in Benzene
When acetic acid is dissolved in benzene, it does not ionize as it would in water. Instead, it remains mostly in its molecular form because benzene is a non-polar solvent and does not favor the ionization of acids.

**Hint:** Consider the properties of benzene as a non-polar solvent and how it affects the solubility and ionization of polar substances.

### Step 3: Recognize the Presence of Acetic Acid Molecules
In the solution, the acetic acid will primarily exist as CH₃COOH molecules. There will be very little ionization into acetate ions (CH₃COO⁻) and hydrogen ions (H⁺) due to the non-polar nature of benzene.

**Hint:** Think about the extent of ionization of weak acids in non-polar solvents compared to polar solvents like water.

### Step 4: Conclusion
Therefore, the solution of acetic acid in benzene will mainly contain CH₃COOH molecules with negligible amounts of acetate ions or hydrogen ions.

**Final Answer:** The solution of acetic acid in benzene contains primarily CH₃COOH molecules.