Which of the following compound will give only one type of carbonyl compound on reductive ozonolysis?

Options

A. `(CH_(3))_(2)C=C(CH_(3))_(2)`
B.
C.
D. All of these

Answer

To determine which compound will give only one type of carbonyl compound on reductive ozonolysis, we can follow these steps:

### Step 1: Understand Reductive Ozonolysis
Reductive ozonolysis is a reaction where alkenes are treated with ozone (O₃) followed by a reducing agent (like zinc in acetic acid) to cleave the double bond and form carbonyl compounds (aldehydes or ketones).

### Step 2: Analyze the Compounds
We need to analyze the given compounds (let's assume we have three alkenes) to see which one will yield only one type of carbonyl compound after ozonolysis.

### Step 3: Perform the Reaction Mechanism
For each alkene, we will break the double bond and add oxygen to the resulting fragments. The general reaction can be represented as:
- For an alkene R₁C=C(R₂), upon ozonolysis, it will yield R₁C(=O)R₂ and R₂C(=O)R₁.

### Step 4: Identify the Products
1. **Compound 1:** If we have an alkene like 2-butene (CH₃-CH=CH-CH₃), ozonolysis will yield two different carbonyl compounds (acetaldehyde and butanone).
2. **Compound 2:** If we have an alkene like 1-butene (CH₂=CH-CH₂-CH₃), ozonolysis will yield two different carbonyl compounds (acetaldehyde and butanone).
3. **Compound 3:** If we have an alkene like cyclohexene, ozonolysis will yield only one type of carbonyl compound (cyclohexanone).

### Step 5: Conclusion
Among the compounds analyzed, only the compound that is symmetrical or has identical substituents on both sides of the double bond will yield only one type of carbonyl compound. In this case, cyclohexene will yield only cyclohexanone.

### Final Answer
The compound that will give only one type of carbonyl compound on reductive ozonolysis is **cyclohexene**.

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