1.综合题- (共3题)
(1)已知25℃时:SO2(g)+2CO(g)=2CO2(g)+1/xSx(s) △H=akJ/mol
2COS(g)+SO2(g)=2CO2(g)+3/xSx(s) △H=bkJ/mol。
则COS(g)生成CO(g)与Sx(s)反应的热化学方程式是 。
(2)雄黄(As4S4)和雌黄(As2S3)是提取砷的主要矿物原料。已知As2S3和HNO3有如下反应:As2S3+10H++ 10NO3−=2H3AsO4+3S+10NO2↑+ 2H2O,当生成H3AsO4的物质的量为0.6 mol反应中转移电子的数目为 ,
(3)向等物质的量浓度Na2S、NaOH混合溶液中滴加稀盐酸至过量。其中H2S、HS−、S2−的分布分数(平衡时某物种的浓度占各物种浓度之和的分数)与滴加盐酸体积的关系如下图所示(忽略滴加过程H2S气体的逸出)。

①B表示 。
②滴加过程中,溶液中微粒浓度大小关系正确的是 (填字母)。
a.c(Na+)= c(H2S)+c(HS−)+2c(S2−)
b.2c(Na+)=c(H2S)+c(HS−)+c(S2−)
c.c(Na+)=3[c(H2S)+c(HS−)+c(S2−)]
③NaHS溶液呈碱性,当滴加盐酸至M点时,溶液中各离子浓度由大到小的顺序为 。
(4)工业上用硫碘开路循环联产氢气和硫酸的工艺流程如下图所示:

① 写出反应器中发生反应的化学方程式是 。
② 电渗析装置如图所示,写出阳极的电极反应式 。该装置中发生的总反应的化学方程式是 。


请回答下列问题:
(1)向粗液1中加入的水最后需要 方法才能达到技术要求。
(2)流程中用的空气是用膜分离法制备的富氧空气,该方法的原理是 。
(3)净化剂主要成分为(NH4)2S,粗液2中发生主要反应的离子方程式为 。
(4)写出阳极的电极反应式 。说明电解液循环的原因 。
(5)写出铝热法炼锰的化学方程式 。
请回答下列问题:
(1) 元素A简单氢化物中A原子的杂化类型是________,B、C、D的电负性由小到大的顺序为______(用所对应的元素符号表示)。C的气态氢化物易溶于水的原因是____________________。
(2)E原子的基态电子排布式为________。元素E的单质晶体在不同温度下可有两种堆积方式,晶胞分别如图a和b所示,则其面心立方堆积的晶胞与体心立方堆积的晶胞中实际含有的E原子的个数之比为____________。

(3)实验证明:KCl、MgO、CaO、TiN这4种晶体的结构与NaCl晶体结构相似(如图所示),其中3种离子晶体的晶格能数据如下表:
离子晶体 | NaCl | KCl | CaO |
晶格能/kJ·mol-1 | 786 | 715 | 3401 |
则该4种离子晶体(不包括NaCl)熔点从高到低的顺序是:________。
(4)金属阳离子含未成对电子越多,则磁性越大,磁记录性能越好。离子型氧化物V2O5和CrO2中,适合作录音带磁粉原料的是________。
(5)温室效应,科学家设计反应:CO2+4H2—→CH4+2H2O以减小空气中CO2。若有1 mol CH4生成,则有________mol σ键和________mol π键断裂。
2.选择题- (共6题)
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3.单选题- (共1题)
4.填空题- (共1题)

已知:① R—CH2—CH=CH2

②R—CH2—CH=CH2

(1)C的结构简式是 ,E中的官能团的名称是 。
(2)写出A

(3)H的分子式为C8H6O4,能与碳酸钠溶液反应放出气体,其一氯取代物只有一种,试写出E+H

(4)关于G的说法中错误的是 (填序号)。
a.1 mol G最多可与2 mol NaHCO3反应
b.G可发生消去反应
c.1 mol G最多可与2 mol H2发生加成反应
d.1 mol G在一定条件下可与2 mol乙醇发生取代反应
5.实验题- (共1题)

(1)为使Mg2+、Al3+同时生成沉淀,应先向沉淀反应器中加入____________(填“A”或“B”),再滴加另一反应物。
(2)如右图所示,过滤操作中的一处错误是_______________________________。

(3)判断流程中沉淀是否洗净所用的试剂是_____________________________;高温焙烧时,用于盛放固体的仪器名称是________________。
(4)无水AlCl3(183°C升华)遇潮湿空气即产生大量白雾,实验室可用下列装置制备。

装置 B中盛放饱和NaCl溶液,该装置的主要作用是_________________________。F中试剂的作用是________________;用一件仪器装填适当试剂后也可起到F和G的作用;所装填的试剂为________________。
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【1】题量占比
综合题:(3道)
选择题:(6道)
单选题:(1道)
填空题:(1道)
实验题:(1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:0
5星难题:0
6星难题:5
7星难题:0
8星难题:1
9星难题:0