Among the three isomeric alkanes `(C_5 H_(12)),`identify the one that on chlorination yields
Three isomeric monochlorides

Explanation

To solve the problem of identifying which isomer of pentane (C5H12) yields three isomeric monochlorides upon chlorination, we can follow these steps:

### Step 1: Identify the Isomers of Pentane
Pentane (C5H12) has three structural isomers:
1. **n-Pentane**: CH3-CH2-CH2-CH2-CH3
2. **Isopentane (2-methylbutane)**: CH3-CH(CH3)-CH2-CH3
3. **Neopentane (2,2-dimethylpropane)**: (CH3)4C

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