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随着培养学生创新能力呼声的不断提高,近几年高考中创新性试题也不断出现,立意新颖的创新试题,不仅能更好地考查学生的基础知识,文化素养,学习潜能和创新能力,而且有利于高考选拔人才和中学实施素质教育。以下将结合典型试题,谈谈有机化学中有关“不饱和度”的问题及其在解题中的应用。众所周知,烃分为饱和烃和不饱和烃,饱和烃的通式为CnH2n+2,如果一个烃分子不符合这个通式,那么我们就可认为它
With the continuous improvement of the students’ ability to innovate, the innovative test questions in the college entrance examination have also emerged in recent years. The innovative and innovative test questions can not only better examine the students’ basic knowledge, cultural literacy, learning potential and innovation ability, but also It is conducive to the selection of talents for college entrance examinations and the implementation of quality education in secondary schools. The following will combine typical questions, talk about the “unsaturated” problem in organic chemistry and its application in solving problems. As we all know, hydrocarbons are divided into saturated hydrocarbons and unsaturated hydrocarbons. The formula for saturated hydrocarbons is CnH2n+2. If a hydrocarbon molecule does not conform to this formula, then we can think of it as