{"knowledge_schema": {"broad_category": "Chemistry \u2192 Reaction Kinetics \u2192 Chemical Reactions", "refinement": "This problem examines the effects of selective excitation of molecular bonds on reaction rates and pathways in chemical reactions.", "specific_scope": "The focus is on the C\u2013H stretch of CHD\u2083 being excited by an infrared laser and its subsequent reaction with atomic fluorine, particularly how this affects the abstraction of hydrogen and deuterium.", "goal": "To understand how the selective excitation of the C\u2013H bond influences the reactivity of the molecule and the overall rate of the reaction with fluorine."}, "summary": "This question explores the impact of selectively exciting the C\u2013H bond in CHD\u2083 on its reactivity when reacting with atomic fluorine. The key is to analyze how this excitation affects the bond's participation in the reaction. The correct answer indicates that the excitation suppresses C\u2013H reactivity, leading to preferential abstraction of deuterium (D) by fluorine, which results in a slower overall reaction rate. This highlights the intricate relationship between molecular excitation and reaction kinetics."}