Ethanol on complete oxidation gives

Options

A. carbon dioxide and water
B. acetaldehyde
C. acetic acid
D. acetone

Explanation

To determine the products of the complete oxidation of ethanol, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Chemical Formula of Ethanol**:
Ethanol is represented by the chemical formula \( C_2H_5OH \) or \( CH_3CH_2OH \).

2. **Understand the Process of Oxidation**:
Oxidation involves the addition of oxygen or the removal of hydrogen. In the case of ethanol, we will consider the removal of hydrogen atoms during the oxidation process.

3. **Partial Oxidation of Ethanol**:
When ethanol undergoes partial oxidation, it loses hydrogen and forms acetaldehyde (ethanal). The chemical equation for this step is:
\[ C_2H_5OH \rightarrow CH_3CHO + H_2 \]
Here, acetaldehyde (CH₃CHO) is formed.

4. **Complete Oxidation of Ethanol**:
Continuing with the oxidation process, if we further oxidize acetaldehyde, it will be converted into acetic acid (ethanoic acid). The equation for this step is:
\[ CH_3CHO + O \rightarrow CH_3COOH \]
Thus, acetic acid (CH₃COOH) is formed.

5. **Final Product of Complete Oxidation**:
When ethanol is completely oxidized, the final product is acetic acid (ethanoic acid).

6. **Complete Oxidation to Carbon Dioxide and Water**:
If we consider complete oxidation in the presence of excess oxygen, ethanol can be fully oxidized to carbon dioxide and water:
\[ C_2H_5OH + 3O_2 \rightarrow 2CO_2 + 3H_2O \]

### Final Answer:
The complete oxidation of ethanol results in the formation of carbon dioxide and water.

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