北京市/东城区 北京市广渠门中学2026-2027学年高一上学期期中考试(直升班) 化学试题

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北京市广渠门中学2026—2027学年度第一学期期中试题

高一年级化学学科(直升班)

2026.11

本试卷共6页,100分。考试时长90分钟。考生务必将答案答在答题纸上,在试卷上作答无效

可能用到的相对原子质量:O 16   Na 23   S 32   Cl 35.5   Fe 56

一、单选题:本大题共20小题,共50分。

1.下列物质分类不正确的是

A.84消毒液和盐酸都属于混合物

B.烧碱和纯碱都属于碱

C.氧化钠和生石灰都属于碱性氧化物

D.干冰和二氧化硫都属于酸性氧化物

2.下列气体既可以用浓硫酸干燥,又可以用碱石灰干燥的是

A. B. C. D.

3.化学与生活密切相关,下列有关物质性质及其用途叙述不正确的是

A.氧化铁用于制作红色油漆和涂料

B.液氨可用作制冷剂

C.碳酸氢钠可以用作面包膨松剂

D.铁粉具有氧化性,可用于食品中的脱氧剂

4.下列试剂的保存和实验安全方法不正确的是

A.浓硝酸保存于棕色试剂瓶中

B.溶液保存时加入粉

C.使用剩余的金属钠,需放回原试剂瓶中

D.直接向容量瓶中加水稀释浓硫酸

5.取溶液进行离子检验,结论不合理的是

A.滴加硝酸酸化,再加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溶液,产生白色沉淀,该溶液中含有

B.滴加溶液不变色,再滴加氯水,溶液变红色,该溶液中一定含有

C.滴加过量盐酸,生成使澄清石灰水变浑浊的气体,该溶液中一定含有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

D.滴加溶液并加热,生成使湿润红色石蕊试纸变蓝的气体,该溶液中含有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

6.下列反应的离子方程式正确的是

A.向溶液中加入铁粉振荡后颜色变浅:page number 0

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B.用浓硝酸溶解银:

C.向溶液中通入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:

D.向稀硫酸中滴加过量溶液: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

7.将硫粉和铁粉均匀混合,用灼热的玻璃棒触及混合粉末,当混合物呈红热状态时,产生黑色固体及刺激性气味气体。移开玻璃棒,固体粉末仍保持红热。下列分析不正确的是

A.硫的化学性质比较活泼,能与铁等金属发生化学反应

B.移开玻璃棒后固体粉末仍红热,说明反应放热

C.用湿润的品红试纸检验刺激性气味气体,试纸褪色

D.向黑色固体中加少量盐酸,得到浅绿色溶液,证明Fe与S反应生成FeS

8.某小组用如图装置探究的性质。下列离子方程式书写不正确的是

image

A.甲中紫色褪去:

B.乙中蓝色逐渐变浅:

C.丙中产生少量白色沉淀:

D.丁中可能的反应:

9.下列实验中,能够达成对应实验目的的是

选项

A

B

C

D

装置

image

image

image

image

目的

验证铁粉与水蒸气的反应

验证氧化性:

制取

制取纯净的沉淀

10.下图为酸雨形成的示意图。下列说法中,不正确的是page number 1

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image

A.酸雨会加速桥梁、电缆等的腐蚀

B.酸雨形成的过程发生了氧化还原反应

C.大气中含量的增大是导致酸雨的原因之一

D.转化为,理论上每生成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,转移电子

11.是一种可用于生产颜料、木材防腐剂等的化工产品。将铜粉加入稀盐酸中,并持续通入空气,在的催化作用下可生成(过程如图所示)。下列说法不正确的是

image

A.可循环使用

B.过程I的反应为: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

C.过程II中的氧化剂为

D.该过程总反应为:

12.对下列事实的解释中,不正确的是

A.在空气中不稳定,会转化成,说明具有还原性

B.漂白液与盐酸反应产生氯气,说明漂白液中含有氧化性物质

C.在蔗糖中加入浓硫酸后出现发黑现象,因为浓硫酸具有吸水性

D.常用于潜水艇或呼吸面具的供氧,因为与、反应产生

13.为研究的性质,进行如表实验。下列说法中,不正确的是

装置

实验

image

液体a

现象

蒸馏水

I.Na浮在液面上,剧烈反应,产生少量白雾

盐酸

II.Na浮在液面上,反应比I中剧烈,产生白雾

浓盐酸

III.Na浮在液面上,反应比I中缓慢,产生大量白雾,烧杯底部有白

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