Write structures for each of the following compounds. Why are the given names incorrect? Write correct IUPAC names.
(i) 2-Ethylpentane
(ii) 5-Ethyl – 3-methylheptane

Explanation

To solve the problem, we need to write the structures for the given compounds, identify why their names are incorrect according to IUPAC nomenclature, and provide the correct IUPAC names.

### Step 1: Draw the structure for 2-Ethylpentane

1. **Identify the parent chain**: The name "pentane" indicates a straight-chain hydrocarbon with 5 carbon atoms.
2. **Draw the carbon chain**:
- The structure is:
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