当前位置:首页>复习资料>【2026版化学高考步步高大二轮专题复习讲义江苏专用版第1练深挖教材类试题

【2026版化学高考步步高大二轮专题复习讲义江苏专用版第1练深挖教材类试题

  • 2026-03-24 04:22:11
【2026版化学高考步步高大二轮专题复习讲义江苏专用版第1练深挖教材类试题

第1练 深挖教材类试题

[分值:100分]

引导考生关注:教材习题、插图、资料卡片、方法引导等栏目内容

(1~14题,每小题5分)

1.(2025·盐城三模)化学与生产、生活、科技、医药等密切相关。下列说法不正确的是(  )

A.可用X射线衍射仪区分普通玻璃和水晶

B.利用超分子的分子识别特征可以分离C60和C70

C.中国天眼(FAST)使用的SiC是新型无机非金属材料

D.天目一号气象星座卫星的光伏发电系统工作时可将化学能转化为电能

答案 D

解析 X射线衍射法可区分晶体(如水晶)和非晶体(如普通玻璃),因晶体具有有序结构会产生衍射峰,而非晶体不会,A正确;碳化硅(SiC)属于新型无机非金属材料,具有耐高温、高硬度等特性,广泛应用于高科技领域,C正确;光伏发电系统通过光电效应将光能直接转化为电能,D错误。

2.(2025·连云港一模)反应CH3COOH+CH3CH2OHCH3COOCH2CH3+H2O可用于制备乙酸乙酯。下列有关说法正确的是(  )

A.H2O分子的VSEPR模型:

B.乙酸分子中σ与π键数目比为71

C.羟基的电子式:

D.乙酸乙酯分子中含有离子键

答案 B

解析 H2O分子中O原子的价层电子对数=2+=4,含有2个孤电子对,VSEPR模型为四面体形,A错误;乙酸(CH3COOH)分子中,单键全是σ键,双键含1σ键和1π键,σπ键数目比为71,B正确;羟基(—OH)的电子式应为错误;乙酸乙酯是共价化合物,只含共价键,不含离子键,D错误。

3.元素周期表中存在对角线规则,如表所示。下列说法错误的是(  )

A.Li能在N2中燃烧

B.BeO属于两性氧化物

C.BeCl2与过量NaOH溶液反应生成Be(OH)2

D.B可作为半导体材料

答案 C

解析 AlCl3与过量NaOH溶液反应生成Na[Al(OH)4],则BeCl2与过量NaOH溶液反应生成Na2[Be(OH)4]。

4.锌锰电池是生活中常用的一种化学电源,酸性锌锰电池和碱性锌锰电池的构造如图所示,下列有关说法错误的是(  )

A.二者均属于一次电池

B.二者分别消耗6.5 g锌,都转移0.2 mol电子

C.二者的正极反应式均为MnO2+H2O+e-===MnO(OH)+OH-

D.碱性锌锰电池比酸性锌锰电池比能量高

答案 C

解析二者的负极皆为Zn,负极锌失电子,所以二者分别消耗6.5g锌,都转移0.2mol电子,故B正确;酸性锌锰电池的正极反应式为MnO2+N+e-===MnO(OH)+NH3,碱性锌锰电池的正极反应式为MnO2+H2O+e-===MnO(OH)+OH-,故C错误;碱性锌锰电池用锌粉代替锌筒,增大反应物的接触面积,加快反应速率,因此碱性锌锰电池比酸性锌锰电池比能量高,故D正确。

5.苯甲酸是一种食品添加剂,某粗苯甲酸样品中含有少量NaCl和泥沙,提纯苯甲酸的实验流程如图(已知:常温下苯甲酸易溶于乙醇,25 和75 时苯甲酸在水中的溶解度分别为0.34 g和2.2 g)。下列说法正确的是(  )

A.过滤时为了加快过滤速度,需要用玻璃棒不断搅拌漏斗中的液体

B.检验苯甲酸中含有的NaCl是否除净,可选用AgNO3溶液

C.洗涤时为了减少苯甲酸的损失、提高产量,可选用乙醇作洗涤剂

D.除去苯甲酸中的NaCl,结晶时应采用蒸发结晶

答案 B

解析过滤时,不能用玻璃棒搅拌漏斗中的液体,有可能会使滤纸破裂,故A错误;检验苯甲酸中含有的NaCl是否除净,可以取少量样品溶于水,滴加硝酸银溶液,若无白色沉淀,则说明NaCl已经除净,故B正确;常温下,苯甲酸微溶于水,易溶于乙醇,洗涤时不宜用乙醇,应用冷水,故C错误;NaCl的溶解度随温度变化不大,为除去NaCl,“结晶时应采用冷却结晶,使NaCl留在滤液中,故D错误。

6.物质结构决定性质。对下列物质的性质差异解释错误的是(  )

选项

性质差异

解释

A

沸点:正戊烷>异戊烷

分子支链数量不同

B

金属熔点:W>Cu

金属键强弱不同

C

导电性:石墨>金刚石

碳原子杂化方式不同,导致原子排列方式和原子轨道重叠方式不同

D

酸性:CF3COOH>CCl3COOH

相对分子质量大小不同

答案 D

解析烷烃的同分异构体中,支链越多,沸点越低,正戊烷和异戊烷互为同分异构体,正戊烷没有支链,异戊烷有一个支链,则沸点:正戊烷>异戊烷,A正确;因金属键强度差异,W中金属键强于Cu,则金属熔点:W>Cu,B正确;石墨中C原子为sp2杂化,有一个p电子可以自由移动,金刚石中C原子为sp3杂化,无自由移动的电子,碳原子杂化方式不同,导致原子排列方式和原子轨道重叠方式不同,则导电性:石墨>金刚石,C正确;酸性与FCl的电负性有关,电负性:F>Cl,F的吸电子能力强,则酸性:CF3COOH>CCl3COOH,D错误。

7.环氧树脂在机械制造、航空航天等许多工业领域中起到重要的作用。一种新型环氧树脂G的合成路线如图所示。

下列说法错误的是(  )

A.X分子中的碳原子有两种杂化方式,且其中所有碳原子可能共面

B.1 mol Y能与NaHCO3溶液反应生成1 mol CO2

C.Z的核磁共振氢谱中,所含峰的峰面积之比为1223442

D.由Z合成聚合物G时会有无机物NaCl生成

答案 B

通过网盘分享的文件:word讲义【更新联系lymsummers】等2个文件

链接: https://pan.baidu.com/s/1RCL2uLZQuQ-rZUf2_ekrWg?pwd=4321 提取码: 4321 

--来自百度网盘超级会员v8的分享

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  1. CONNECT:[ UseTime:0.000380s ] mysql:host=127.0.0.1;port=3306;dbname=i_67808;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000670s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000290s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.004566s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000611s ]
  6. SELECT * FROM `set` [ RunTime:0.001228s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000790s ]
  8. SELECT * FROM `article` WHERE `id` = 462427 LIMIT 1 [ RunTime:0.001198s ]
  9. UPDATE `article` SET `lasttime` = 1774780955 WHERE `id` = 462427 [ RunTime:0.004428s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000515s ]
  11. SELECT * FROM `article` WHERE `id` < 462427 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000718s ]
  12. SELECT * FROM `article` WHERE `id` > 462427 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000434s ]
  13. SELECT * FROM `article` WHERE `id` < 462427 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.007303s ]
  14. SELECT * FROM `article` WHERE `id` < 462427 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001405s ]
  15. SELECT * FROM `article` WHERE `id` < 462427 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.005606s ]
0.103983s