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高三月考试卷

高三月考试卷
高三月考试卷

高三化学综合练习(南模)

一、选择题(本题共40分,每小题2分,只有一个正确选项。)

1.侯氏制碱过程中没有用到的操作是

A.冷却B.蒸发C.过滤D.灼烧

2.下列仪器主要用于“冷凝”的是

A.B.C.D.

3.从煤焦油中分离出苯的方法是

A.干馏B.分馏C.分液D.萃取

4.下列性质的比较,不能用元素周期律解释的是

A.原子半径:S>Cl B.热稳定性:Na2CO3>NaHCO3

C.还原性:I->Br-D.酸性:H2SO4>H3PO4

5.下列过程没有明显现象的是

A.加热NH4Cl固体B.向Al2(SO4)3溶液中滴加氨水

C.向FeSO4溶液中通入NO2 D.将铝片放入冷的浓硫酸中

6.将SO2通入KIO3淀粉溶液,溶液先变蓝后褪色。此过程中SO2表现出

A.酸性B.还原性C.氧化性D.漂白性

7.右图是制备和收集气体的实验装置,该装置可用于

A.饱和食盐水与碳化钙反应制取乙炔

B.浓硝酸与铜反应制取二氧化氮

C.浓氨水与生石灰反应制取氨气

D.浓盐酸与二氧化锰反应制取氯气

8.设N A为阿伏伽德罗常数的值。下列说法正确的是

A.7.8 g Na2O2中阴离子数为0.2 N A

B.1 mol OH-含有的电子数为10 N A

C.常温常压下,2.24 L乙烯中含有的氢原子数为0.4 N A

D.0.1 L 0.5 mol·L? 1 CH3COOH溶液中含有的氢离子数为0.05 N A

9.海水提溴一般需要经过浓缩、氧化和提取三个步骤。下列对操作步骤描述错误的是A.浓缩的原理是蒸发结晶B.氧化时通入氯气

C.提取时利用Br2易挥发D.提取时用CCl4萃取

10.用铁铆钉固定铜板,通常会发生腐蚀如右图所示,

下列说法错误的是

A.铁铆钉做负极被锈蚀

B.铁失去的电子通过水膜传递给O2

C.正极反应:O2 + 4e-+ 2H2O →4OH-

D.铁钉变化过程:Fe→Fe2+→Fe(OH)2→Fe(OH)3→Fe2O3·xH2O

11.过氧化钠是一种制氧剂,它和CO2反应方程式为:2Na2O2+2CO2→2Na2CO3+O2下列说法正确的是

A.Na2O2是氧化剂,CO2是还原剂B.Na2CO3是还原产物,O2是氧化产物C.每转移4摩尔电子,有1摩尔氧气生成D.1摩尔CO2参加反应就会产生11.2LO2

X

水 浓硝酸 浓硫酸 水 A .配制混酸 B .硝化反应 C .分离硝基苯 D .蒸馏硝基苯

有 机

无水

CaCl 2 12.合成乙烯的主要反应: 6H 2(g) + 2CO 2(g)CH 2 = CH 2(g) + 4H 2O(g) +Q 。图中L (L 1、L 2)、X 可分别代表压强或温度。下列说法正确的是 A .L 1 < L 2

B .X 代表压强

C .M 、N 两点对应的平衡常数相同

D .M 点的正反应速率v 正小于N 点的逆反应速率v 逆

13.不能使溴水褪色的物质是

A .乙烯

B .SO 2

C .乙醇

D .硫化氢 14.实验室制备硝基苯时,经过配制混酸、硝化反应(50~60℃)、洗涤分离、干燥蒸馏等步

15.常温下,若要使0.01mol/L 的H 2S 溶液

pH 减小的同时c (S 2—)也减小,可采取的措施为 A .加入少量NaOH 固体 B .通入少量Cl 2 C .通入少量SO 2 D .通入少量O 2

16

对二甲苯 邻二甲苯 间二甲苯 苯 沸点 / ℃ 138 144 139 80 熔点 / ℃

13

﹣25

﹣47

6

下列说法错误的是

A .苯、甲苯、对二甲苯属于同系物

B .推测甲苯的沸点高于80℃而低于138℃

C .甲苯生成二甲苯和苯的反应属于取代反应

D .用蒸馏的方法能从二甲苯混合物中分离出对二甲苯 17.工业生产措施中,能同时提高反应速率和转化率的是

A .合成氨使用高压

B .合成氨使用铁触媒作催化剂

C .制硫酸时接触室使用较高温度

D .侯氏制碱法循环利用母液 18.除去下列括号内杂质的试剂或方法正确的是 A .HNO 3溶液(H 2SO 4)适量BaCl 2,过滤

B .CO 2(SO 2)饱和Na 2CO 3溶液、浓硫酸,洗气

C .C 2H 6(C 2H 4),高温高压催化剂通入氢气

D .C 2H 5OH (CH 3COOH ),加足量CaO ,蒸馏 19.对于0.1mol/LNH 4Cl 溶液,下列判断正确的是 A .温度升高会使溶液的pH 增大

B .通入少量HCl ,溶液中的c ( NH 4+)和c (Cl -)均增大

C .加入少量NaOH 稀溶液,可嗅到刺激性的气味

D .c (Cl -)>c (H +)>c (NH 4+)>c (OH -)

20.铝热反应常用于冶炼高熔点金属,某小组探究Al 粉与Fe 3O 4发生反应所得黑色固体的成分,实验过程及现象如下:

下列说法错误的是

A .反应①产生的气体是H 2

B .反应②为:Al 2O 3 + 2OH -→2AlO 2-

+ H 2O C .反应③的白色沉淀是Al(OH)3

D .黑色固体中不含Al 和Fe 3O 4

二、综合分析题(本题共60分) (一)(本题共13分)

联合国将2019年定为“国际化学元素周期表年”,2018年中国化学会制作了新版周期表,包含了118种元素。请回答下列问题: X

.碳元素在周期表中的位置是 。占据的轨道共有______个,有______个未成对电子,核外电子占据的最高能层符号为_________。

22.在上述周期表中,用实线画出周期表的上方边界。

23.从原子结构角度解释碳化硅中碳元素显负价的原因

。 24.第118号元素为Og (中文名“ ”,ào ),下列说法错误的是 。

A .Og 是第七周期零族元素

B .Og 原子的核外有118个电子

C .Og 在同周期元素中非金属性最强

D .中子数为179的Og 核素符号是179118Og 25.已知X 和Y 是位于相邻周期的同主族元素。某温度下,X 、Y 的单质与H 2化合生成气

态氢化物的平衡常数分别为K X =9.7×1012、K Y =5.6×107,Y 是 (填元素符号),判断理由是 。

(二)(本题共17分)

氨是生产氮肥的原料。合成氨的化学方程式为N 2(g)+3H 2(g)2NH 3(g)+Q (Q>O )。 26.下列描述中能说明上述反应已达平衡的是

a .c (N 2):c (H 2):c (NH 3)=1:3:2

b .容器中气体密度不变

c .容器中压强不变

d .3v 正(H 2)=2v 逆(NH 3)

27.达平衡后,若使平衡常数K 值增大,则 (填“正反应”或“逆反应”)的速率变

化更大;若增加铁触媒的用量,则NH 3的物质的量变化为_____________(填“增大”、“减小”或“不变”,下同);若增大N 2的浓度,则化学平衡常数K 。

28.若T ℃时达平衡,此时c (H 2)=amol/L ,其它条件不变时将容器体积压缩为原来的一半,

达到新平衡时c (H 2)=bmol/L 。试确定b 的取值范围,并说明理由。

黑色 固体

稀H 2SO 4

气体 b

KSCN

不变红

稀NaOH

无气体 产生

溶液a

CO 2

白色沉淀

29.常见氮肥有①氨水②(NH4)2SO4③NH4HCO3④NH4Cl,1mol/L的上述各溶液中c(NH4+)由大到小的顺序为(用编号回答)。解释铵态氮肥与草木灰(主要成分K2CO3)不宜混合使用的原因。

30.Cl2通入70℃的NaOH水溶液中,反应完成后,测得溶液中NaClO与NaClO3的物质的量之比为4∶1,配平溶液中所发生反应的化学方程式:

反应中的氧化产物为。已知生成0.1mol NaClO3,反应中转移的电子总数是个。

(三)(本题共15分)

以石油产品A为原料合成高聚物H的路线如下(E的苯环上有2个对位的取代基):

回答下列问题:

31.A的化学名称;条件X是。

32.反应类型:A→B;C→D。

33.D的结构简式。

34.写出F→G的化学反应方程式。35.E的同分异构体有多种,满足下列条件且含有苯环的同分异构体有种。

①含氧官能团只有2种;②能发生银镜反应;③能与NaHCO3反应产生CO2

36.写出用乙烯为原料制备聚乙二酸乙二酯的合成路线(无机试剂任选)。

(四)(本题共15分)

Na2O2是一种常见的过氧化物,具有强氧化性和漂白性。通常可用作漂白剂和呼吸面具中的供氧剂。

37.某实验小组通过下列实验探究过氧化钠与水的反应:

①用化学方程式解释使酚酞试液变红的原因,

依据实验现象推测红色褪去的原因是。

②加入MnO2反应的化学方程式为。

实验小组两名同学共同设计如下装置探究过氧化钠与二氧化硫的反应。通入SO2,将带余烬的木条插入试管C中,木条复燃。

请回答下列问题:

38.甲同学认为Na2O2与SO2反应生成了Na2SO3和O2,该反应的化学方程式是:

,检验反应后B中的白色固体含有Na2SO3的方法是:

39.乙同学认为反应的后B中有Na2SO3还会有Na2SO4。乙同学猜想的理由是:

为检验产物中Na2SO4的存在乙同学设计并实施了如下实验方案:

甲同学认为该实验方案的现象不能证明有Na2SO4生成,其理由为

40.请补充完整实验小组测定B中反应完全后固体组成的实验方案。称取样品a克加水溶解,

,烘干,称量沉淀质量为b 克,计算含量。

2018—2019高三月考语文试卷教学内容

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高三第一次月考数学试卷

湖南省长沙市宁乡二中届高三第一次月考 数学试卷 时量:120分钟 总分150分 一 选择题(每小题只有一个正确答案,选对计5分) 1.设全集U={-2,-1,0,1,2},A={-2,-1,0},B={0,1,2},则(U A )∩B= ( ) A .{0} B .{-2,-1} C .{1,2} D .{0,1,2} 2. 一个物体的运动方程为21t t s +-=其中s 的单位是米,t 的单位是秒,那么物体在3秒末的瞬时速度是 ( ) A .7米/秒 B .6米/秒 C .5米/秒 D .8米/秒 3.下列函数中,在定义域内既是奇函数又是减函数的是 ( ) A .3 x y -= B .x y sin = C .x y = D .x y )2 1 (= 4 . 条 件 甲 : “ 1>a ”是条件乙:“a a >”的 ( ) A .既不充分也不必要条件 B .充要条件 C .充分不必要条件 D .必要不充分条件 5. 不 等 式 21 ≥-x x 的解集为 ( ) A.)0,1[- B.),1[∞+- C.]1,(--∞ D.),0(]1,(∞+--∞ 6. 图 中 的 图 象 所 表 示 的 函 数 的 解 析 式 为 ( ) (A)|1|2 3 -= x y (0≤x ≤2) (B) |1|23 23--=x y (0≤x ≤2) (C) |1|2 3 --=x y (0≤x ≤2) (D) |1|1--=x y (0≤x ≤2)

7.如果()f x 为偶函数,且导数()f x 存在,则()0f '的值为 ( ) A .2 B .1 C .0 D .-1 8. 设,a b R ∈,集合{1,,}{0, ,}b a b a b a +=,则 b a -= ( ) A .1 B .1- C .2 D .2- 9. 已知3 2 ()(6)1f x x ax a x =++++有极大值和极小值,则a 的取值范围为 ( ) A .12a -<< B .36a -<< C .1a <-或2a > D .3a <-或6a > 10. 已知3 2 2 ()3(1)1f x kx k x k =+--+在区间(0,4)上是减函数,则k 的范围是( ) A .1 3 k < B .103k <≤ C .1 03 k ≤< D .1 3 k ≤ 二 填空题(每小题5分) 11. 曲线x y ln =在点(,1)M e 处的切线的方程为______________. 12. 函数552 3--+=x x x y 的单调递增区间是__________________. 13.若函数)1(+x f 的定义域为[0,1],则函数)13(-x f 的定义域为____________. 14. 已知2 (2)443f x x x +=++(x ∈R ),则函数)(x f 的最小值为____________. 15. 给出下列四个命题: ①函数x y a =(0a >且1a ≠)与函数log x a y a =(0a >且1a ≠)的定义域相同; ②函数3 y x =与3x y =的值域相同;③函数11 221 x y =+-与2(12)2x x y x +=?都是奇函数;④ 函数2 (1)y x =-与1 2x y -=在区间[0,)+∞上都是增函数,其中正确命题的序号是 _____________。(把你认为正确的命题序号都填上) 三 解答题(本大题共6小题,共75分) 16 (本小题满分12分 )设全集U=R, 集合A={x | x 2 - x -6<0}, B={x || x |= y +2, y ∈A }, 求C U B ; (C U A)∩(C U B)

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