Among the isomeric alkanes of molecular formula `C_(5)H_(12)`, identify the one that on photochemical chlorination yields
(i) A single monochloride.
(ii) Three isomeric monochlorides.
(iii) Four isomeric monochlorides.

Explanation

To solve the problem of identifying isomeric alkanes of molecular formula C5H12 that yield different numbers of monochlorides upon photochemical chlorination, we will analyze the structures of the possible isomers step by step.

### Step 1: Identify the isomeric alkanes of C5H12
The molecular formula C5H12 corresponds to pentane, which has several structural isomers. The main isomers are:
1. **n-Pentane** (straight-chain)
2. **Isopentane** (2-methylbutane)
3. **Neopentane** (2,2-dimethylpropane)
4. **Cyclopentane** (not applicable as it is a cyclic compound)
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