1 . 下列离子方程式书写错误的是
A.过氧化钠溶于硫酸铜溶液中:![]() |
B.向![]() ![]() ![]() |
C.向碳酸氢钠溶液中滴加盐酸:![]() |
D.向次氯酸钠溶液中通入少量![]() ![]() |
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2 . 氟哌酸也叫诺氟沙星,是一种对胃肠道感染有很好疗效的广谱抗菌药,其结构如图。下列有关氟哌酸的说法错误的是
A.氟哌酸可以发生取代反应 | B.分子式为![]() |
C.1mol该物质最多能与5mol ![]() | D.能使酸性高锰酸钾溶液褪色,但不能使溴水褪色 |
您最近一年使用:0次
名校
3 . 钛酸亚铁常用于制备磁芯、磁盘和传感器等,它属于立方晶系,晶胞结构如图所示。下列叙述错误的是
为阿伏加德罗常数的值。
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bbbfc69cfd78a89c450bdb65076e431.png)
A.![]() ![]() |
B.晶胞中![]() ![]() |
C.![]() ![]() ![]() |
D.钛酸亚铁晶体密度为![]() |
您最近一年使用:0次
名校
4 . 以相应的卤代酸酯为原料,利用Gabriel法合成天冬氨酸,其中一种中间产物的结构如图所示,下列有关该有机物的说法正确的是
A.存在分子中含有两个苯环且可发生银镜反应的同分异构体 |
B.分子中不含有手性碳原子 |
C.1mol该有机物最多与7mol的![]() |
D.分子中所有的碳原子共平面 |
您最近一年使用:0次
名校
解题方法
5 . 我国某大学科研团队通过超快电脉冲热还原法开发了一种新型碳载钌镍合金纳米催化剂(RuNi/C),并基于此催化剂制备出一种极具竞争力的高能量镍氢气(
)电池,其工作原理如图所示。下列说法错误的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f84192288bb650950aec3bcd646e14c.png)
A.放电时,![]() |
B.放电一段时间后,KOH溶液的浓度增大 |
C.放电时,电极a上的电极反应式为![]() |
D.外电路中每转移2mol ![]() ![]() |
您最近一年使用:0次
6 . 锌是一种重要的金属,锌及其化合物被广泛应用于汽车、建筑、船舶、电池等行业。某科研小组以固体废锌催化剂(主要成分为
,含少量
、
、
、
等杂质)为原料制备锌的工艺流程如图所示:
、
分别转化为
、
进入溶液。
②
时,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7473b7b1132a4f882e3a5da2bb9d283.png)
③
时,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e7b8acc24040547826cf3f9ab415005.png)
请回答下列问题:
(1)
在元素周期表中位于___________ 区。
(2)“浸取”温度为
时,锌的浸出率可达
,继续升温浸出率反而下降,其原因为___________ 。
(3)“深度除锰”是将残留的
转化为
,写出该过程的离子方程式:___________ 。
(4)“深度除铜”时,若加入的
过量,会发生反应![](https://staticzujuan.xkw.com/quesimg/Upload/formula/441d3fa031474008efec8ced55e0351b.png)
,导致锌的回收率下降,该反应的平衡常数数值为___________ 。
(5)“电解”产物可用于
双离子电池中(装置如图所示)。该电池工作时,正极上发生的电极反应式为___________ ;每转移
电子,负极区电解质溶液的质量增加___________
。
原子能形成多种配合物,一种锌的配合物的结构如图所示:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc2a39beea5adf5d07aea0424ca7a64f.png)
___________
(填“>”“<”或“=”)。
②配位键
和
相比,较稳定的是___________ (填“
”或“
”),其原因是___________ 。
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95b4cd60d8ddc7eabbe39ebd3671c33b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd64433131ff93fd151abc85cfe05dba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58e610ef2c5fcbafdedd18861231055a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43d894bc065e134464eefd906187b16b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b29e5890a882a946f99eb379b94801b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95b4cd60d8ddc7eabbe39ebd3671c33b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43d894bc065e134464eefd906187b16b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3311618d3e4a888c8752a6af1b5e132e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06c9cd94c21dd18c5883802979413d97.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f988ef8f87925047d752423e34b8e31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f5cd5426e06c467bcec040d6e4667bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7473b7b1132a4f882e3a5da2bb9d283.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f988ef8f87925047d752423e34b8e31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01b9547800a0bf90671878ea5d9c8378.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e7b8acc24040547826cf3f9ab415005.png)
请回答下列问题:
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe5b9f2768c9e68f633b33d6929f5590.png)
(2)“浸取”温度为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4ba0f74617296002da26fedb7a461e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/994cf6139ad6f2235ad65cc989286913.png)
(3)“深度除锰”是将残留的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9028a8c90efe91bbfac33fb674352b8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0641a680d3500ca3bcdb5612441b6a5.png)
(4)“深度除铜”时,若加入的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ccedf369cb86319283b5afdded4faca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/441d3fa031474008efec8ced55e0351b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52ec39d1023e1e7c5919a46be9e08b85.png)
(5)“电解”产物可用于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d582154a9291b29a2de85b5bb56804d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d6a40590bc3c0ab80ce11e851e3066d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3960d67499df76159982657fe3a1cbca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe5b9f2768c9e68f633b33d6929f5590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc2a39beea5adf5d07aea0424ca7a64f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c0927afc571a7c966c98192040979e.png)
②配位键
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/581c04af30b490da1a50555f9c89125c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaab0619213938b7f55769c7540abdf8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/581c04af30b490da1a50555f9c89125c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaab0619213938b7f55769c7540abdf8.png)
您最近一年使用:0次
7 . 下列化学用语表达正确的是
A.用电子云轮廓图表示![]() ![]() |
B.![]() ![]() |
C.邻羟基苯甲醛分子内氢键:![]() |
D.对硝基甲苯的结构简式:![]() |
您最近一年使用:0次
解题方法
8 . 历史上,滴滴涕(
)和六六六等有机氯杀虫剂揭开了人类施用有机合成农药的新篇章。长期施用
,一些害虫体内的酶会使
发生催化反应脱去
变成
。有关物质结构如图所示,下列有关说法正确的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/434034de3be7caad4831b5b452df8645.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/434034de3be7caad4831b5b452df8645.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/434034de3be7caad4831b5b452df8645.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/387d2029bc8e5f0ceb454be937a07e3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7928fb1396cacb2653abb7b6d7e44d8.png)
A.六六六所有的原子可能共平面 |
B.![]() ![]() |
C.![]() ![]() |
D.控制条件使所有![]() ![]() ![]() ![]() |
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9 . 中国积极推动技术创新,力争2060年实现碳中和。
催化还原的主要反应有:
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcad0195f46c943575216eea6f66e3ee.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d99536f8ac9daa9bff458c5d257e5c9.png)
向恒温恒压的密闭容器中通入
和
进行上述反应。
的平衡产率
、
的平衡转化率
随温度的变化关系如图所示。下列说法错误的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4298cb837170c021b9f2cd4e674a6a3.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b35e90d9301361fd4631e9560221c133.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcad0195f46c943575216eea6f66e3ee.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1a0a7e8797859917d04ff18a6a89d4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d99536f8ac9daa9bff458c5d257e5c9.png)
向恒温恒压的密闭容器中通入
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/979ffcaa8b1bff91952fd9aaefc72e42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cd41b88f6b448ca9149c1aefa10c8a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4d1f1e78b8ee320c79a71d3308b8db0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8d6a9d8b43cc5fa3b16428a50ee2c57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4298cb837170c021b9f2cd4e674a6a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2741c3362299687ef90626cb2f57626d.png)
A.反应②在较高温度下才能自发进行 |
B.若气体平均摩尔质量不再变化,则反应①和②均达到平衡状态 |
C.任意温度下的平衡转化率:![]() |
D.平衡时![]() |
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10 . “碳达峰·碳中和”是我国社会发展重大战略之一,
还原
是实现“双碳”经济的有效途径之一,相关的主要反应有:
反应1:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7879131b0faa2ab94e7a9ea049865a4.png)
反应2:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da1565d16a37050aecc6d39e31292e32.png)
请回答下列问题:
(1)
,该反应正反应的活化能___________
(填“大于”“小于”或“等于”)。
(2)恒压、
时,
和
按物质的量之比
投料,反应经如下流程(主要产物已标出)可实现
的高效转化。
需吸收的能量为___________ 。
②过程
平衡后通入
,一段时间内
的物质的量___________ (填“增大”“减小”或“不变”)。
(3)将
与
在
恒容密闭容器中反应制取
和
时,发生反应1和反应
,
和
的平衡转化率随温度变化的关系如图所示。___________ (填“
”或“
”)代表
的平衡转化率。
②计算
时反应1的化学平衡常数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b51ee6fe038c30ffb16019af67a9fe.png)
___________ (计算结果保留两位小数)。
③
还原能力
可衡量
的转化效率,
(同一时段内
与
的物质的量变化量之比),从平衡移动的角度分析,随着温度升高,
值逐渐减小直至近似等于1的可能原因是___________ 。
④催化剂
可提高
值,常压下
和
按物质的量之比
投料,某一段时间内
的转化率、
值随温度变化如下表:
下列说法正确的是___________ (填标号)。
A.
值提高是由于催化剂
选择性地提高反应2的速率
B.温度越低,含氢产物中
占比越低
C.温度升高,
的转化率增加,
的转化率降低,
值减小
D.改变催化剂可提高平衡时的
值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eff19349a80467d65564cc2953f0c978.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4298cb837170c021b9f2cd4e674a6a3.png)
反应1:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83182738f18ceb821b1af77ca3743009.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7879131b0faa2ab94e7a9ea049865a4.png)
反应2:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b35e90d9301361fd4631e9560221c133.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da1565d16a37050aecc6d39e31292e32.png)
请回答下列问题:
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57818c774662bc757de8d91034fa5df1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51a1b1b11306c213a5bba649ac8fb334.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce0c9baf41a60c6ed93093613515383f.png)
(2)恒压、
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/202b078d3237622f91707d7d82ef34e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eff19349a80467d65564cc2953f0c978.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4298cb837170c021b9f2cd4e674a6a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5881f1ce9b4172ca346032d0fd1e3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4298cb837170c021b9f2cd4e674a6a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/979ffcaa8b1bff91952fd9aaefc72e42.png)
②过程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/971ab6567c156fee308640828a804415.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a58453e277815a9e6bb2682460ce85f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5a122e25cf4eb9f03ffe5ec823bfc31.png)
(3)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/331b62afabebfb7ff2c89c27d09905a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc1857e7f0696eaa73e023a8545364b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c424e9f778fdc2a13a59898ab0ccbbe3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5a122e25cf4eb9f03ffe5ec823bfc31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7644a7769a5fa1bdab46cc0b2dee2861.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eff19349a80467d65564cc2953f0c978.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4298cb837170c021b9f2cd4e674a6a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc2a39beea5adf5d07aea0424ca7a64f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/581c04af30b490da1a50555f9c89125c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4298cb837170c021b9f2cd4e674a6a3.png)
②计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a744ef6be2454d737c200df152057e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b51ee6fe038c30ffb16019af67a9fe.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eff19349a80467d65564cc2953f0c978.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae3dabe712066a42938a78815930c64d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4298cb837170c021b9f2cd4e674a6a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/197d1a4ea9cf138e1d5c6b74adfcf90c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4298cb837170c021b9f2cd4e674a6a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eff19349a80467d65564cc2953f0c978.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
④催化剂
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/674e31dbbc3c338972a2fa85d588afae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eff19349a80467d65564cc2953f0c978.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4298cb837170c021b9f2cd4e674a6a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5881f1ce9b4172ca346032d0fd1e3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eff19349a80467d65564cc2953f0c978.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
温度![]() | 480 | 500 | 520 | 550 |
![]() ![]() | 7.9 | 11.5 | 20.2 | 34.8 |
![]() | 2.6 | 2.4 | 2.1 | 1.8 |
A.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/674e31dbbc3c338972a2fa85d588afae.png)
B.温度越低,含氢产物中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98183b7becdd0efb6fe8f57cdcbce983.png)
C.温度升高,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eff19349a80467d65564cc2953f0c978.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4298cb837170c021b9f2cd4e674a6a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
D.改变催化剂可提高平衡时的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
您最近一年使用:0次