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

Formation of three isomeric monochlorides indicates the presence of three equivalent sets of H-atoms designated as a, b and c. Thus, the structure should be:
`underset("n = Pentane")(overset(a)(CH_3) oversetbCH_2 oversetc(CH_2) oversetbCH_2 oversetaCH_3)`