Among the following given compounds. Which of the following compounds on oxidation gives ethyl methyl ketone?

Options

A. tert-butyl alcohol
B. 1-butanol
C. 2-butanol
D. 3-propanol

Explanation

To determine which compound on oxidation gives ethyl methyl ketone, we need to analyze the structures of the given compounds and their oxidation products. Ethyl methyl ketone (also known as 3-pentanone) has the structure CH3-CO-CH2-CH3.

### Step-by-Step Solution:

1. **Identify the Structure of Ethyl Methyl Ketone:**
- Ethyl methyl ketone has the structure:
\[ CH_3-CO-CH_2-CH_3 \]
- This indicates that we are looking for a compound that, upon oxidation, will yield this structure.

2. **Examine the First Compound (Tertiary Butyl Alcohol):**
- The structure of tertiary butyl alcohol is:
\[ (CH_3)_3C-OH \]
- Upon oxidation, tertiary alcohols do not oxidize because they lack hydrogen atoms on the carbon bearing the hydroxyl group. Therefore, this compound cannot yield ethyl methyl ketone.

3. **Examine the Second Compound (1-Butanol):**
- The structure of 1-butanol is:
\[ CH_3-CH_2-CH_2-CH_2-OH \]
- Upon oxidation, 1-butanol would oxidize to butanal (an aldehyde), not to a ketone. Thus, this compound also cannot yield ethyl methyl ketone.

4. **Examine the Third Compound (2-Butanol):**
- The structure of 2-butanol is:
\[ CH_3-CH(OH)-CH_2-CH_3 \]
- Upon oxidation, 2-butanol will oxidize to 2-butanone (a ketone), which has the structure:
\[ CH_3-CO-CH_2-CH_3 \]
- This matches the structure of ethyl methyl ketone. Therefore, this compound is a candidate.

5. **Examine the Fourth Compound (3-Propanol):**
- The structure of 3-propanol is not valid as it does not exist. The valid alcohols are 1-propanol and 2-propanol. Thus, this option can be disregarded.

6. **Conclusion:**
- The only compound that, upon oxidation, gives ethyl methyl ketone is **2-butanol**. Therefore, the correct answer is option number 3.

### Final Answer:
**Option 3 (2-Butanol) is the correct answer.**