某物质在空气中完全燃烧时,生成质量比为11:9的CO2和H2O,则该物质的

某物质在空气中完全燃烧时,生成质量比为11:9CO2H2O,则该物质的化学式可能是(  

ACO       BCH4       CC2H2       DC4H10

答案

B  

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