山东省潍坊市2017年中考化学真题试题(含解析)
2017年潍坊市初中学业水平考试化学试题可能用到的相对原子质量:H1C12N14O16Na23Mg24S32Cl35.5Fe56Ca40Cu64第I卷(选择题共40分)一、选择题(本题包括10小题,每小题2分,共20分。每小题只有一个选项符合题意)7.化学与生产、生活密切相关。下列说法错误的是A.用活性炭吸附室内甲醛、降低甲醛对人体的危害B.施用大量农药减少病虫害C.用氯化钠作融雪剂,消除公路上的积雪D.医疗上用乙醇体积分数为75%的酒精杀菌消毒【考点】化学与生活.【分析】要解答此题需掌握,活性炭的作用;氯化钠做融雪剂的作用;生活常识用75%的酒精杀菌消毒;化肥、农药需要适度不可过多或者过少。...
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