Write the structure of the alkene which on reductive ozonolysis gives butanone and ethanal.

Explanation

To find the structure of the alkene that, upon reductive ozonolysis, yields butanone and ethanal, we can follow these steps:

### Step 1: Identify the products
The products of the ozonolysis are butanone and ethanal.
- Butanone has the structure: CH3C(=O)CH2CH3
- Ethanal has the structure: CH3C(=O)H

### Step 2: Understand ozonolysis
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