Write bond line formula for heptan-4-one.

Explanation

To write the bond line formula for heptan-4-one, follow these steps:

### Step-by-Step Solution:

1. **Identify the Structure of Heptan-4-one**:
- Heptan-4-one is a ketone with a seven-carbon chain (heptane) and a carbonyl group (C=O) located at the fourth carbon.

2. **Draw the Carbon Chain**:
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