{"knowledge_schema": {"broad_category": "Chemistry \u2192 Inorganic Chemistry \u2192 Binary Compounds", "refinement": "This problem involves the identification and analysis of binary compounds formed between fluorine and another element Y, focusing on their molecular weights and stability.", "specific_scope": "The task is to determine the molecular weight of a specific compound (B1) based on its decomposition into another compound (B2) at a given temperature.", "goal": "Identify the correct molecular weight of compound B1 from the provided candidates based on the information given."}, "summary": "This problem pertains to the study of binary compounds in chemistry, specifically those involving fluorine and another element. It requires understanding the decomposition of a compound and its implications for molecular weight. The goal is to determine the molecular weight of compound B1, which breaks down into B2 at a specified temperature. The correct answer is 165 g/mol, which is one of the candidates provided."}