AIIMS 2018 Chemistry Reduction Reactions MCQ Question

The reaction involving Cl₂/hν leads to a free radical substitution, where chlorine atoms replace hydrogen atoms on the alkane chain, resulting in the formation of Ph−CH(Cl)−CH₂−C≡C−CH₃. Option A (Na/NH₃) describes the Birch reduction, which converts the alkyne into a trans alkene but does not directly lead to chlorination. Option C incorrectly suggests that both reactions occur simultaneously, while option D states that none of the options are correct. Thus, only option B accurately identifies the specific reaction responsible for the chlorination of the compound.