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成都2026高三二诊化学试卷答案

  • 2026-04-01 06:07:19
成都2026高三二诊化学试卷答案

成都2026高三二诊化学试卷➕答案

试卷整体难度中等,正常新高考三梯度左右难度水平,没有难度特别大的题,整张卷子的易错点,绝大多数学校都训练的到,最后阶段核心还是稳定性和得分率。考完的可以根据这次错的版块,定向训练。其他年级同学可以用来检验新学或学过内容。
1-2比较基础,常规考点。

3化学用语正常考察,如果出现新结构,类比旧知如D选项,类比碳碳双键。

4有机常规考点,很简单。

5非金属金属板块,常规考点,很简单

6元素周期律及推断,常规考点,D甲醛无法形成分子间氢键。简单。

7小实验题,注意细节,B不需要用蒸发皿加热,加稀硫酸等就可以,C加入过量不需要用滴定装置

8离子方程式相关,简单。注意常见配合物,这些课上都训练过。

9有机,B相同化学环境才是非极性键,考同种元素形成极性键。

10小实验题,注意细节,D醛基相关实验,碱足量。

11结构版块,需要结合图具体分析,算配位数有的需要侧面算,需要根据图直接数,这种题不需要纠结,很多所谓的创新题,大都为了醋包盘饺子。

12电化学常规的考烂了,就会偶尔设置障碍,读题要小心,比如双阴极等价于原电池双正极D是1份葡萄糖与6份水一起转移24份电子,正常计算即可。

13化学动力学,常规题型,以往新高考考过类似

14结构版块,常规考察,B看图,配位数2或3,

15化学原理部分常规难题,题简单,正常考数学能力计算。选择题出的比较好的另一道,严格按平衡常数进行数学运算,选择题不需要爆算,可以预估排除。

第16工艺流程常规考察,题目比较简单,毕竟没有用来坑人的那个计算空。注意细节。不能丢分。

第17大实验版块,考配合物制备。(2)可能有的同学忘了,之前高二暑假特意给大家说过这个题,不能水浴,因为沸腾的很剧烈了。其他省份考过。(3)抽滤实验过滤速率快,所以沉淀不均匀时容易包裹滤液,或者压强不均(5)正常计算(6)注意bc都可以

第18化学原理综合。常规考查,难度适中(3)注意CO2过量这个细节(4)要从速率角度切入,Ni-TiO2催化未达平衡(6)公式代入换算,可以反应叠加计算。

第19有机合成。常规考察,比较简单。注意第四小问命名,一些学校强调过,特殊命名了,这分没拿到也不需要太纠结,第一个N是强调位置的,考查的特别细。

四川,1小时前,

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  139. /yingpanguazai/ssd/ssd1/www/www.sjds.net/runtime/temp/5febe16c9207553ef9b4c4406f7af920.php ( 12.06 KB )
  140. /yingpanguazai/ssd/ssd1/www/www.sjds.net/vendor/topthink/think-trace/src/Html.php ( 4.42 KB )
  1. CONNECT:[ UseTime:0.000436s ] mysql:host=127.0.0.1;port=3306;dbname=www_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000697s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.021381s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.005520s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000715s ]
  6. SELECT * FROM `set` [ RunTime:0.000683s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000791s ]
  8. SELECT * FROM `article` WHERE `id` = 469188 LIMIT 1 [ RunTime:0.002765s ]
  9. UPDATE `article` SET `lasttime` = 1775067787 WHERE `id` = 469188 [ RunTime:0.035796s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.001310s ]
  11. SELECT * FROM `article` WHERE `id` < 469188 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000589s ]
  12. SELECT * FROM `article` WHERE `id` > 469188 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.006836s ]
  13. SELECT * FROM `article` WHERE `id` < 469188 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000682s ]
  14. SELECT * FROM `article` WHERE `id` < 469188 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000592s ]
  15. SELECT * FROM `article` WHERE `id` < 469188 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.010570s ]
0.159133s