Work out all possible structural isomeric alkenes corresponding to `C_(5)H_(10)` and also give their `IUPAC` names.
Strategy: Alkene isomers are deduced by writing the different `C` skeletons and then introducing the double bond at different locations. The possible skeletons are
`C-C-underset((I))C-C-C,C-underset((II))underset(C)underset(|)C-C-C,C-underset((III))underset(C )underset(|)overset(C )overset(|)C-C`

Explanation

To determine all possible structural isomeric alkenes for the molecular formula \( C_5H_{10} \), we will follow the strategy of identifying different carbon skeletons and then introducing the double bond in various positions. Here’s a step-by-step breakdown of the solution:

### Step 1: Identify Carbon Skeletons
We start by identifying the different carbon skeletons that can be formed with five carbon atoms. The possible skeletons are:

1. **Straight-chain (pentane)**: \( C-C-C-C-C \)
2. **Branched-chain (butane with a methyl group)**: \( C-C-C-C \) with a methyl group on one of the carbons.

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