下题为2001年全国初中。学生化学素质与实验能力复赛试卷中选择题的第11题: 乙醇发生不完全燃烧,可表示为假设得到燃烧产物CO、CO2、H2O的总质量为27.6g,其中H2O为10.8g,则产物中CO的质量是: A.1.40g B.6.53g C.16.8g D.不确定统计显示,该题错答率达90%以上,其中80% The title is National Junior High School in 2001. The 11th title of the multiple-choice questions in the student’s chemistry and experimental ability rehash test paper: Incomplete combustion of ethanol can be expressed as the assumption that the total mass of combustion products CO, CO2, H2O is 27.6g, of which H2O is 10.8g, the product The quality of CO is: A.1.40g B.6.53g C.16.8g D. Uncertain statistics show that the wrong answer rate is more than 90%, of which 80%