Name an alkene which on reductive ozonolysis produces only acetone.

Explanation

To solve the question of naming an alkene that, upon reductive ozonolysis, produces only acetone, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Reductive Ozonolysis**:
- Reductive ozonolysis is a reaction where an alkene is treated with ozone (O₃) followed by a reducing agent (like zinc and water). This reaction cleaves the double bond in the alkene and forms carbonyl compounds (aldehydes or ketones).

2. **Identifying the Product**:
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