2021年山西省中考化学试题(原卷版)
2021年山西中考化学试卷第I卷选择题(共50分)化学部份可能用到的相对原子质量:H—1C—12O—16Cl—35.5K—39一、选择题(本大题共10个小题。每小题2分,共20分。在每小题给出的四个选项中,只有一项符合题目要求,请选出并在答题卡上将该选项涂黑。)1.绿色映底蕴、山水见初心。每年的3月12日,习近平总书记都身体力行参加义务植树活动。并诠释造林绿化、厚植绿色中国的重大意义。造林绿化化最主要的作用是()A.储备工业原料B.改善生态环境C.阻止阳光照射D.生产农家肥料2.“天丝”被誉为21世纪的绿色纤维,兼具天然纤维和合成纤维的优势,在高新科技方面应用广泛。以下领域一般不使用"天丝"的...
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