1.单选题- (共3题)
| A．金属腐蚀就是金属原子失去电子被还原的过程 |
| B．钢铁吸氧腐蚀时，负极反应式为：2H2O+O2+4e→4OH- |
| C．氯碱工业中，阳极发生的反应为：2Cl-–2e→Cl2↑ |
| D．镀锌铁皮的镀层损坏后，铁更容易腐蚀 |
| A．加快石油资源的开采和使用 |
| B．《环境空气质量标准》中强制纳入PM2.5指标 |
| C．废旧电池应集中回收，不能填埋处理 |
| D．减少一次性餐具的使用，研发可降解高分子材料 |
2.选择题- (共3题)
根据短文理解，选择正确答案。
On a snowy and windy afternoon, Ann, a ten-year-old girl, went out to play. She was walking along the sands when she was blown into a ditch (壕沟) by the seashore. She was frightened and tried her best to climb out. But the ditch was too deep and she was too weak to get out of it. So Ann cried at the top of her voice for help. But what she could hear over the snow ditch was nothing but the terrible noise of the wind. Nobody came to her and nobody knew where she was. She struggled again and again. Her face was struck by the strong wind, snow and sand, and was almost frozen. Her hands were stiff. She also felt that she was worn out. She started to cry hopelessly. Just at the moment Ann saw a black dog appearing through the heavy snow. It was Victor, her true friend. He was glad to see the sign of life. And the dog set out to work as soon as he got to Ann. He cleaned away the snow around her with his own paws and hind legs, and then reached out his big strong fur head to Ann. The little girl closed her arms round Victor's neck. The dog backed away slowly, pulling her out of the ditch little by little.
Successfully, Ann got out of the ditch at last. Then she struggled to her feet. With great difficulty, led by her true friend Victor, she was rescued. Victor, the black dog, was given a gold medal and was honoured as Brave Hero Dog of America.
根据短文理解，选择正确答案。
On a snowy and windy afternoon, Ann, a ten-year-old girl, went out to play. She was walking along the sands when she was blown into a ditch (壕沟) by the seashore. She was frightened and tried her best to climb out. But the ditch was too deep and she was too weak to get out of it. So Ann cried at the top of her voice for help. But what she could hear over the snow ditch was nothing but the terrible noise of the wind. Nobody came to her and nobody knew where she was. She struggled again and again. Her face was struck by the strong wind, snow and sand, and was almost frozen. Her hands were stiff. She also felt that she was worn out. She started to cry hopelessly. Just at the moment Ann saw a black dog appearing through the heavy snow. It was Victor, her true friend. He was glad to see the sign of life. And the dog set out to work as soon as he got to Ann. He cleaned away the snow around her with his own paws and hind legs, and then reached out his big strong fur head to Ann. The little girl closed her arms round Victor's neck. The dog backed away slowly, pulling her out of the ditch little by little.
Successfully, Ann got out of the ditch at last. Then she struggled to her feet. With great difficulty, led by her true friend Victor, she was rescued. Victor, the black dog, was given a gold medal and was honoured as Brave Hero Dog of America.
3.填空题- (共4题)
已知：
请按要求回答下列问题：
（1）M的分子式为_________，其分子中除碳氧双键外的官能团的名称为_______________。
（2）写出①、③的反应类型：①_______________________，③_______________________。
（3）E的名称___________，检验D中官能团的试剂是___________。
（4）写出反应②的化学方程式：____________________________________________；
（5）X是M的同分异构体，且X属于酯类，其结构简式有__________种，请写出只含一个甲基的结构简式：__________________。
已知：NaBH4是一种很强的还原剂，可以将-C
N还原为-CH2NH2（1）关于化合物D的说法错误的是_______________
a．1molD最多可与3molH2发生加成反应 b．可以与盐酸发生反应
c．可以使高锰酸钾酸性溶液褪色 d．是烃的含氧衍生物
（2）反应③在水溶液中进行，HCl是催化剂，此反应中除了生成D外，还有一种产物，该产物的名称是_________________。
（3）E的结构简式为______________________。
（4）合成路线中设计反应①和③的目的是____________________________________________
（5）阅读以下信息，依据以上流程图和所给信息，以CH3CHO和CH3NH2为原料设计合成α-氨基丙酸【CH3CH(NH2)COOH】的路线。
已知：
提示：①合成过程中无机试剂任选，②合成反应流程图表示方法示例如下：
A→B→C…→H．
氮的氢化物肼（N2H4）是航天火箭发射常用的燃料，二氧化氮作氧化剂。
回答以下问题：
（1）氮原子的最外层电子排布式是_________________；氮元素有多种化合价，写出含2种价态氮的化合物的化学式_________________（举一例）。
（2）硅原子核外电子排布在______________种不同能量的电子亚层上，氮化硅属______________晶体。
（3）上述反应中，属于同一周期的元素符号有_________，用___________________________事实可以比较它们的非金属性强弱。
（4）肼(N2H4)分子可视为NH3分子中的一个氢原子被－NH2取代形成的另一种氮的氢化物。NH3分子的空间构型是______________；与N2H4分子具有相同电子数的分子有多种，其中具有可燃性的物质是_________（举一例）。
（5）肼作火箭发射燃料，燃烧时发生的反应是：N2O4(l)＋2N2H4(l) → 3N2(g)＋4H2O(g)+1038.7kJ若该反应中有4mol N－H键断裂，则形成的气体有_____mol，其中转移电子数目_____。
（6）肼能与硫酸反应生成N2H6SO4。该物质晶体类型与硫酸铵相同，则其溶液PH_______7（填>、＜或=），原因是____________________（用离子方程式表示）
已知：常温下Fe3+、Mg2+完全沉淀的pH分别是：3.4、12.4。
（1）SiCl4水解反应的化学方程式为_________________________________________________。过滤操作需要的玻璃仪器有_________________________________。
（2）加钡矿粉调节pH=7的作用是________________________、_______________________。
（3）加20% NaOH调节pH=12.5，得到滤渣A的主要成分是_______________________。
（4）BaCl2滤液经__________、_________、过滤、洗涤，再经真空干燥后得到BaCl2·2H2O。
（5）10吨含78.8 % BaCO3的钡矿粉理论上最多能生成BaCl2·2H2O_________吨。实际产量为9.70吨，相对误差为__________________%。
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【1】题量占比
单选题:(3道)
选择题:(3道)
填空题:(4道)
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【2】：难度分析
1星难题：0
2星难题：0
3星难题：0
4星难题：2
5星难题：0
6星难题：2
7星难题：0
8星难题：1
9星难题：0