Anisole on cleavage with HI gives

Step-by-step solution

Anisole is methoxy benzene. Anisole reacts with protons from hydroiodic acid to form methyl(phenyl) oxonium ion. In the methyl(phenyl)oxonium ion, the oxygen atom has a positive charge. This positive charge is delocalised through resonance with the benzene ring. Due to this, the bond between the oxygen atom and the aromatic carbon atom of benzene has a partial double bond character. This bond is difficult to break. Hence, the iodide ion does not attack the aromatic carbon atom of the benzene ring. On the other hand