09北京市海淀区高三化学期末考试 答案（The answer to the final exam of high school chemistry in haidian district, Beijing）.docVIP

09北京市海淀区高三化学期末考试 答案（The answer to the final exam of high school chemistry in haidian district, Beijing） This article is contributed by wangrui530122 Doc documents may have a poor browsing experience at the WAP end. It is recommended that you choose TXT, or download the source file to the native view. High school chemical information network The first semester of high school in haidian district 2009.1. The school The class The name 本试卷分为第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分,第Ⅰ卷 1 至 3 页,第Ⅱ卷 4 至 8 页,共 100 分.考试时间 120 分钟.答题时请将第Ⅰ卷每小题的正确答案选出后,填在第 4 页 答卷表格的相应空格中,若仅答在第Ⅰ卷上则不给分.请将第Ⅱ卷各题的答案直接答在试卷的相 应位置上. 可能用到的相对原子质量: 可能用到的相对原子质量: H1 C 12 N 14 O 16 Cl 35.5 K 39 Cu 64 Zn 65 第Ⅰ卷(选择题 共 45 分) 道小题, 在每小题列出的四个选项中, 本卷共 15 道小题,每小题 3 分,共 45 分.在每小题列出的四个选项中,选出符合题目要求 的一个选项. 的一个选项. 1.下列叙述不正确的是 A.二氧化硅是光导纤维的主要原料 B.某些药皂中含有苯酚,说明苯酚是无毒的 C.淀粉,纤维素,蛋白质属于天然高分子化合物 D.国家严禁在食品及动物饲料中添加的三聚氰胺是有机物 2.下列叙述不正确的是 A.易溶于水的物质一定是电解质 B.有化学键断裂的变化不一定是化学变化 C.熔化状态下能导电的物质不一定是离子晶体 D.水受热不易分解,与水分子之间存在氢键无关 3.取少量无机盐溶液试样对其中的离子进行检验.下列判断正确的是 A.加入盐酸,产生白色沉淀,则试样中一定有 Ag+ - B.加入盐酸,产生能使澄清石灰水变浑浊的无色气体,则试样中一定有 CO32 C.加入 BaCl2 溶液,产生白色沉淀,再加入稀硝酸,沉淀不溶解,则试样中一定有 SO42D.加入 NaOH 溶液微热,产生能使湿润的红色石蕊试纸变蓝的气体,则试样中一定有 NH4+ CH CH2 4. Disposable polystyrene ( n The material is liable to cause white pollution, and its substitute is polylactic acid ( O CH C CH3 O N) is from lactic acid ( CH3 CH COOH OH Polylactic acid can be used in lactic acid bacteria The following statement is correct CH2 CH3 A. Polystyrene monomers are pure c. polystyrene and polylactic acid are pure B. The polymerization of polystyrene and polylactic acid is similar to d. lactic acid can be eliminated High school chemical information network 1 High school chemical information network 5. For purification of the following substances (impurities in brackets), Selected in addition to the separation of mixed reagent and method are correct option A B C D is purified material (impurities) of NH3 (H2O) ethyl acetate (acetic acid) KCl solid (I2) benzene (phenol) in saturated sodium carbonate solution KOH solution