In the sequence of the following reactions
`CH_(3) CH_(2) OH underset("Chromic Acid")overset([0])toX`
`X underset("Chromic acid")overset([0])to CH_(3) COOH` , here x is

Options

A. `CH_(3) COCH_(3)`
B. `CH_(3)CHO`
C. `CH_(3)OCH_(3)`
D. `CH_(3) CH_(2)COOH`

Answer

To solve the problem, we need to identify the compound X that is formed when ethanol (CH₃CH₂OH) is oxidized by chromic acid (H₂CrO₄) and subsequently oxidized to acetic acid (CH₃COOH).

### Step-by-Step Solution:

1. **Identify the Starting Compound:**
- The starting compound is ethanol (CH₃CH₂OH).

2. **Understand the Oxidation Process:**
- Chromic acid is a strong oxidizing agent. When ethanol is oxidized, it typically undergoes a stepwise oxidation process.

3. **Determine the First Oxidation Product:**
- The first oxidation of ethanol (CH₃CH₂OH) leads to the formation of an aldehyde.
- In this case, since ethanol has two carbon atoms, the aldehyde formed will be acetaldehyde (CH₃CHO).

4. **Identify the Compound X:**
- Therefore, X is acetaldehyde (CH₃CHO).

5. **Second Oxidation Reaction:**
- The acetaldehyde (X) is then further oxidized by chromic acid to form acetic acid (CH₃COOH).

6. **Final Conclusion:**
- Thus, the compound X in the sequence of reactions is acetaldehyde (CH₃CHO).

### Final Answer:
X = CH₃CHO (acetaldehyde)

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