Consider the following statement acetophenone can be prepared by
(1) Oxidation of 1-phenylethanol
(2) Reaction of banzylalcohol with methyl magnesium bromide
(3) Friedel-Crafts reaction of benzene with acetyl chloride
(4) Distillation of calcium benzoate

Options

A. 1 & 4
B. 1 & 2
C. 1 & 3
D. 3 & 4

Answer

To determine how acetophenone can be prepared, we will analyze each of the provided statements one by one.

### Step-by-Step Solution:

1. **Oxidation of 1-Phenyl Ethanol**:
- 1-Phenyl ethanol (C6H5-CH(OH)-CH3) can be oxidized to form acetophenone (C6H5-CO-CH3).
- During oxidation, the hydroxyl group (-OH) is converted to a carbonyl group (C=O), resulting in acetophenone.
- **Conclusion**: This statement is **correct**.

2. **Reaction of Benzyl Alcohol with Methyl Magnesium Bromide**:
- Benzyl alcohol (C6H5-CH2-OH) reacts with methyl magnesium bromide (CH3MgBr), which is a Grignard reagent.
- The Grignard reagent reacts with the alcohol to form an alkane (methane, CH4) and a magnesium alkoxide (C6H5-CH2-O-MgBr).
- This reaction does not yield acetophenone.
- **Conclusion**: This statement is **incorrect**.

3. **Friedel-Crafts Reaction of Benzene with Acetyl Chloride**:
- In the Friedel-Crafts acylation, benzene (C6H6) reacts with acetyl chloride (CH3COCl) in the presence of anhydrous aluminum chloride (AlCl3).
- This reaction produces acetophenone (C6H5-CO-CH3) and hydrochloric acid (HCl).
- **Conclusion**: This statement is **correct**.

4. **Distillation of Calcium Benzoate**:
- Calcium benzoate (C6H5COO) upon dry distillation can yield benzophenone (C6H5-CO-C6H5) and calcium carbonate (CaCO3).
- This reaction does not produce acetophenone.
- **Conclusion**: This statement is **incorrect**.

### Final Conclusion:
The correct methods to prepare acetophenone are:
- **(1)** Oxidation of 1-phenyl ethanol
- **(3)** Friedel-Crafts reaction of benzene with acetyl chloride

Thus, the correct answer is that acetophenone can be prepared by statements **(1)** and **(3)**.