How many structurally isomeric monochloro products are obtained upon the photochemical chlorination of isopentane?

Step-by-step solution

The structure of isopentane is 2-methylbutane, CH₃-CH(CH₃)-CH₂-CH₃ . To find the number of structurally isomeric monochloro products, we identify the number of non-equivalent sets of hydrogen atoms. In isopentane, there are four different types of hydrogen atoms: (i) The primary hydrogens of the two equivalent methyl groups attached to C-2. (ii) The tertiary hydrogen at C-2. (iii) The secondary hydrogens at C-3. (iv) The primary hydrogens of the methyl group at C-4. Since there are 4 sets of non-equivalent hydrogen