well, with the effectiveness of services to defend the interests of the masses. Third, we should strive to do well. To achiev good practical results, the key is to know the law, to grasp the laws and using laws. Office of economic development, social progress, there are rules to follow. Only act according to the law, to overcome blindness and strengthening initiative, creative. Working in the Office, we should be good at analyzing the essence of things, to find regular thing, change from passive to active, to seek one. Investee 2. establishment of evaluation system. Evaluation system is essentially an incentive mechanism, the evaluation was objective and fair, reasonable, and can stimulate a person's energy, mobilizing people's enthusiasm or be misleading, dampened the enthusiasm of people. At present, the concept of people-oriented people, but to establish and perfect evaluation system is still lagging behind. Work in this area should be seriously caught up. \ emphasis on\o take advantage of. Is a focus on standards and scientific. A fundamental point of the evaluation criteria, is to keep contact, developmentcomprehensive eye evaluation of cadres. Office work, both \ntial performance\h subjective efforts, take another look at the objective condition; both \h, take another look at the \d, focus on participating the breadth of the subject. Evaluation of cadres must give full play to democracy, cadres and the masses handing over evaluation. Office work services leadership and service base, serve the people, then nominated the main object will contain a variety of services, so that assessment was accurate and to avoid one-sidedness. Third, pay attention to the seriousness of the conclusion. The use of evaluation findings is mainly embodied in his direction. Permitted to choose one, it would be tantamount to establishing a banner. Evaluation can't take care of the balance, otherwise it would undermine the offset the positive significance of evaluation. Office of the party committees at all levels should take the findings as on the cadres ' bonus-penalty, an important basis for future movements, incentive and restraint effect of making evaluations. 3. Prevention ofunderstanding \d development, concrete is dialectical,. In practice in the process, to prevent one-sided and still look, from actual people. One is to use dialectical point of view to understand. Humanist is the core of the scientific Outlook on development, remains the development of the scientific Outlook on development emphasizes, is still taking economic construction as the Center. Any departure from the development of thought and action, is a misinterpretation and misunderstanding of people-oriented. Adhere to people-oriented both to overcome one-sidedness of the old, but also to prevent one-sidedness, not accelerating the development of people and the opposition. Must be very clear, people oriented and speeding up development is not opposed, but consistent, we should never be29. 下列氢氧化物中,既能溶于过量NaOH溶液又能溶于过量氨水的是（ ）。
A、Zn(OH)2
粗产品 重结晶产品
B、Fe(OH) 3 外观 C、Al(OH)3 质量 / g 12.5 9.6 D、Ni(OH)2
30、某同学以20.0 g胆矾为原料精制五水硫酸铜时，记录的结果见下表：
母液体积 / mL 18.0 8.0 粉状，蓝色并略带黄色 棒状，蓝色，几乎不带黄色
下列有关该实验的说法中，不正确的是（ ）。 A、重结晶可进一步降低晶体中的杂质含量
B、“重结晶”中，溶解过程水分有蒸发 D、“重结晶”比“结晶”步骤的回收率要低
C、“重结晶”步骤冷却结晶过程一直在搅拌
31、某阴离子与钼酸铵(NH4)2MoO4在微酸性溶液中生成可溶性的黄色溶液，此阴离子为（ ）。
A、CO32- B、SiO32- C、PO43- D、S2O32- 32、Sr2+的焰色反应呈现（ ）颜色。
A、绿色 B、黄色 C、红色 D、蓝色 33、优级纯（GR）试剂标签标志为（ ）颜色。
A、绿色 B、棕色 C、红色 D、蓝色 34、滴定度TK2Cr2O7= 0. g·mL-1，表示（ ）。 A、1mL 被测物Fe 相当于标准溶液K2Cr2O7 0. g B、K2Cr2O7与Fe的比值为 0.
C、1 mL K2Cr2O7标准溶液相当于被测物Fe 0. g D、Fe与K2Cr2O7的比值为 0.
35、在水样中加入一定量化学试剂、杀菌剂、防腐剂，能减少水样中发生的物理、化学和生物学的变化，使水样成分和状态保持相对稳定。如水样中加入（ ）可防止酚类化合物生物氧化。 A、FeCl3 B、H2SiO3 C、Al2(SO4)3 D、CuSO4
36、某铁矿石中含铁39.16%，若甲的分析结果为39.12%，39.15%，39.18%，乙的分析结果为39.19%，39.24%，39.28%。则以下结论正确中的是（ ）。
A、乙的准确度和精密度均好。 B、甲的准确度高，乙的精密度好。 C、甲的准确度和精密度均好。 D、乙的准确度高，甲的精密度好。 37、某指示剂HIn在酸性溶液中为黄色，碱性溶液中为蓝色，在pH = 7.30时，[HIn] =
的离解常数KHIn为（ ）。
A、5.0?10?8 B、2.0?10?7 C、2.0?10?8 D、5.0?10?7 38、在氨性介质中，用EDTA滴定Zn2+ 至化学计量点，以下关系中，正确是（ ）。 A、[Zn] ? [Y] B、[Zn]? ? [Y]?
2?4-2?4-1cHIn，此指示剂2[ZnY2-][ZnY2-]??C、[Zn] ? D、KZnY 2?4-?[Zn][Y]KZnY2?239、发射“天宫一号”，使用燃料是偏二甲肼，同时使用N2O4为氧化剂，两种物质混合便会激烈燃烧，
eople-oriented in the name of reducing our enthusiasm. Premier Wen Jiabao's Government work report this year, identified as 7% growth, 2.1% lower than last year's 9.1%, but in 8 work remains to accelerate development in the first place ... Work standards. Second is to use the scale of development to understand. Society is evolving, human needs are also changing. Practice of humanism is a long-term process and cannot be achieved overnight. To treat people if you stand still and rigid dogma, it is possible to return to this, see things but not people's old ways. Therefore, we have to follow the development of the times, and continue debugging the humanist perspective, innovative people-oriented way. Under the new historical conditions, we are requested by the times, set up a brand new concept, a high starting point, high standard of armed people, shaping, exercise, people, constantly taking the new connotation of the times. erms of Office, is to lead the vast numbers of cadres to actively adapt to the knowledge faster and actively adapt to the increasingly high level of leadership situation, actively adapt to the demand
of the masses more and more situations, eager to learn, enhance accumulation, efforts, honed the ability to overcome a good service, panic. Third is to use realistic understanding. Adhere to people-oriented must be based on reality, not divorced from reality. Desk no water cups here in Hong Kong, staff need to drink some water to the drinking fountain on a floor, the glass used is a one-time non-cone type. Drink this cup can only hold, cannot be put down. This is not only to save on glass materials, more important is to force you to get drinking water, go back to your seat business. Our emphasis on people-oriented, does not imply you can indulge the desires, the comfortable, the pursuit of enjoyment. Office of the party committees at all levels of our comrades, must continue to maintain the style of plain living and hard struggle, to stand up to the tests of temptations, exciting \sposition\spirit of selfless dedication and provide services. Investee 4. clearly defined responsibilities. Putting people first is a common vision of development, everyone is a liability. People-oriented, above and below with the responsibility for coordinating system must be established and hold everyone accountable. First, we must strengthen the leadership. \ce, its governance, its level, bear the responsibility of the Division.\s the minimum requirement for leaders, is a measure of the basic criteria for whether a leading cadre is competent. Leaders need to \official term for the benefit of\consciously assume responsibility for implementing people-oriented. Director of the Office of the party committees at all levels is the responsibility of the units to implement people-oriented, to manage their people, %ug in own responsibility\ducation of leading cadres, cadres and cadres work, efforts to revitalize the Office of human resources, Office work is full of vigor and vitality6
well, with the effectiveness of services to defend the interests of the masses. Third, we should strive to do well. To achieve good practical results, the key is to know the law, to grasp the laws and using laws. Office of economic development, social progress, there are rules to follow. Only act according to the law, to overcome blindness and strengthening initiative, creative. Working in the Office, we should be good at analyzing the essence of things, to find regular thing, change from passive to active, to seek one. Investee 2. establishment of evaluation system. Evaluation system is essentially an incentive mechanism, the evaluation was objective and fair, reasonable, and can stimulate a person's energy, mobilizing people's enthusiasm or be misleading, dampened the enthusiasm of people. At present, the concept of people-oriented people, but to establish and perfect evaluation system is still lagging behind. Work in this area should be seriously caught up. \ee emphasis on\of. Is a focus on standards and scientific. A fundamental point of the evaluation criteria, is to keep contact, development, comprehensive eye evaluation of cadres. Office work, both \nd \both subjective efforts, take another look at the objective condition; both \nother look at the \on participating the breadth of the subject. Evaluation of cadres must give full play to democracy, cadres and the masses handing over evaluation. Office work services leadership and service base, serve the people, then nominated the main object will contain a variety of services, so that assessment was accurate and to avoid one-sidedness. Third, pay attention to the seriousness of the conclusion. The use of evaluation findings is mainly embodied in his direction. Permitted to choose one, it would be tantamount to establishing a banner. Evaluation can't take care of the balance, otherwise it would undermine the offset the positive significance of evaluation. Office of the party committees at all levels should take the findings as on the cadres ' bonus-penalty, an important basis for future movements, incentive and restraint effect of making evaluations. 3. Prevention of understanding \d development, concrete is dialectical,. In practice in the process, to prevent one-sided and still look, from actual people. One is to use dialectical point of view to understand. Humanist is the core of the scientific Outlook on development, remains the development of the scientific Outlook on development emphasizes, is still taking economic construction as the Center. Any departure from the development of thought and action, is a misinterpretation and misunderstanding of people-oriented. Adhere to people-oriented both to overcome one-sidedness of the old, but also to prevent one-sidedness, not accelerating the development of people and the opposition. Must be very clear, people oriented and speeding up development is not opposed, but consistent, we should never be第一届广东省大学生化学实验竞
赛
产生大量气体并释放大量的热，该反应的化学式为：2N2O4 + R = 3N2 + 2CO2 +4H2O，则R的化学式是（ ）。
A、C3H5O B、C2H8N2 C、C2H8 D、C2H5N 40、碘量法测定Cu2+时，为了防止Fe3+的干扰，可加入的试剂是 （ ）。 A、NH4Cl B、NH4F C、Na2S2O3 D、KI 41、下面所列哪种样品可以选用莫尔法，用AgNO3直接来滴定（ ）。
A、BaCl2 B、NH4Cl C、KCl D、Na2CO3 + NaCl 42、某物质的摩尔吸光系数很大，则表明（ ）。
A、该物质的浓度很大 B、该物质对某波长光的吸收能力很强 C、使用的吸收池很厚 D、测定该物质的灵敏度很低 43、下列说法中，（ ）是不正确的。 A、酸碱滴定曲线的突跃范围与c、Ka有关。
B、配位滴定曲线的突跃范围与cM、KMY有关。 C、沉淀滴定曲线的突跃范围与c、Ksp有关。 D、氧化还原滴定曲线的突跃范围与c 、? 有关。
44、符合郎伯-比耳定律的有色溶液稀释时，其最大吸收峰的波长位置 （ ）。
A、向短波方向移动 B、不移动，但峰高值降低 C、不移动，但峰高值增大 D、全部无变化 45、判断下列关于金属指示剂的说法中哪一个是准确的（ ）。 A、指示剂为有色物质。 B、指示剂为弱酸、弱碱。 C、在滴定的酸度范围内，其自身与配合物具有不同的颜色。 D、指示剂在酸、碱溶液中可呈现不同的颜色。
46、含有NaOH和Na2CO3的混合液，用HCl滴定至酚酞颜色褪去，耗去V 1 mL，再加入甲基橙指示剂，
继续用HCl滴定又耗去V 2 mL，则V 1与V2的关系是（ ）。 A、V 1 = V 2 B、V 1 ? V 2 C、V 1 ? V 2 D、V 1 = 2 V2
47、在pH = 5.0，以0.020 mol·L?1EDTA溶液滴定50.00 mL 0.020 mol·L?1Zn2+溶液，当加入100.0 mL EDTA
时，下列叙述中哪一个是正确的（ ）。
A、pZn = -logK?ZnY B、log[Zn2+] = logK?ZnY C、pZn = pK?ZnY D、log[Zn2+] = pK?ZnY
48、KMnO4滴定Na2C2O4时，第一滴KMnO4溶液的褪色最慢，但以后就逐渐变快，其原因是（ ）。
A、KMnO4电位很高，干扰多，影响反应速率。
B、该反应是分步进行的，要完成各步反应需一定时间，但只要反应后，速率加快。 C、当第一滴KMnO4与Na2C2O4反应后，产生反应热，加快反应速率。
eople-oriented in the name of reducing our enthusiasm. Premier Wen Jiabao's Government work report this year, identified as 7% growth, 2.1% lower than last year's 9.1%, but in 8 work remains to accelerate development in the first place ... Work standards. Second is to use the scale of development to understand. Society is evolving, human needs are also changing. Practice of humanism is a long-term process and cannot be achieved overnight. To treat people if you stand still and rigid dogma, it is possible to return to this, see things but not people's old ways. Therefore, we have to follow the development of the times, and continue debugging the humanist perspective, innovative people-oriented way. Under the new historical conditions, we are requested by the times, set up a brand new concept, a high starting point, high standard of armed people, shaping, exercise, people, constantly taking the new connotation of the times. erms of Office, is to lead the vast numbers of cadres to actively adapt to the knowledge faster and actively adapt to the increasingly high level of leadership situation, actively adapt to the demand of the masses more and more situations, eager to learn, enhance accumulation, efforts, honed the ability to overcome a good service, panic. Third is to use realistic understanding. Adhere to people-oriented must be based on reality, not divorced from reality. Desk no water cups here in Hong Kong, staff need to drink some water to the drinking fountain on a floor, the glass used is a one-time non-cone type. Drink this cup can only hold, cannot be put down. This is not only to save on glass materials, more important is to force you to get drinking water, go back to your seat business. Our emphasis on people-oriented, does not imply you can indulge the desires, the comfortable, the pursuit of enjoyment. Office of the party committees at all levels of our comrades, must continue to maintain the style of plain living and hard struggle, to stand up to the tests of temptations, exciting \sposition\spirit of selfless dedication and provide services. Investee 4. clearly defined responsibilities. Putting people first is a common vision of development, everyone is a liability. People-oriented, above and below with the responsibility for coordinating system must be established and hold everyone accountable. First, we must strengthen the leadership. \ce, its governance, its level, bear the responsibility of the Division.\s the minimum requirement for leaders, is a measure of the basic criteria for whether a leading cadre is competent. Leaders need to \official term for the benefit of\consciously assume responsibility for implementing people-oriented. Director of the Office of the party committees at all levels is the responsibility of the units to implement people-oriented, to manage their people, %ug in own responsibility\ducation of leading cadres, cadres and cadres work, efforts to revitalize the Office of human resources, Office work is full of vigor and vitality第7页 共15页
well, with the effectiveness of services to defend the interests of the masses. Third, we should strive to do well. To achiev good practical results, the key is to know the law, to grasp the laws and using laws. Office of economic development, social progress, there are rules to follow. Only act according to the law, to overcome blindness and strengthening initiative, creative. Working in the Office, we should be good at analyzing the essence of things, to find regular thing, change from passive to active, to seek one. Investee 2. establishment of evaluation system. Evaluation system is essentially an incentive mechanism, the evaluation was objective and fair, reasonable, and can stimulate a person's energy, mobilizing people's enthusiasm or be misleading, dampened the enthusiasm of people. At present, the concept of people-oriented people, but to establish and perfect evaluation system is still lagging behind. Work in this area should be seriously caught up. \ emphasis on\o take advantage of. Is a focus on standards and scientific. A fundamental point of the evaluation criteria, is to keep contact, developmentcomprehensive eye evaluation of cadres. Office work, both \ntial performance\h subjective efforts, take another look at the objective condition; both \h, take another look at the \d, focus on participating the breadth of the subject. Evaluation of cadres must give full play to democracy, cadres and the masses handing over evaluation. Office work services leadership and service base, serve the people, then nominated the main object will contain a variety of services, so that assessment was accurate and to avoid one-sidedness. Third, pay attention to the seriousness of the conclusion. The use of evaluation findings is mainly embodied in his direction. Permitted to choose one, it would be tantamount to establishing a banner. Evaluation can't take care of the balance, otherwise it would undermine the offset the positive significance of evaluation. Office of the party committees at all levels should take the findings as on the cadres ' bonus-penalty, an important basis for future movements, incentive and restraint effect of making evaluations. 3. Prevention ofunderstanding \d development, concrete is dialectical,. In practice in the process, to prevent one-sided and still look, from actual people. One is to use dialectical point of view to understand. Humanist is the core of the scientific Outlook on development, remains the development of the scientific Outlook on development emphasizes, is still taking economic construction as the Center. Any departure from the development of thought and action, is a misinterpretation and misunderstanding of people-oriented. Adhere to people-oriented both to overcome one-sidedness of the old, but also to prevent one-sidedness, not accelerating the development of people and the opposition. Must be very clear, people oriented and speeding up development is not opposed, but consistent, we should never beD、反应产生Mn2+，它是KMnO4 与Na2C2O4反应的催化剂。 49、下列物质中，可以用来直接标定I2溶液的是（ ）。
A、As2O3 B、邻苯二甲酸氢钾 C、硼砂 D、淀粉-KI 50、用碘量法测定二价铜盐时，加NH4SCN的作用是（ ）。
A、消除Fe3+的干扰 B、催化剂 C、缓冲剂 D、使CuI转化为CuSCN 51、卤化银沉淀对卤素离子和几种常用吸附指示剂的吸附能力次序如下：
I > SCN > Br > 曙红 > Cl >荧光黄，因此滴定Cl时，应选用（ ）为指示剂。
－
－
－
－
－
A、曙红 B、曙红和荧光黄 C、荧光黄 D、前述几种试剂均不能用 52、用BaSO4重量法测定SO42-时，若沉淀BaSO4中包藏了(NH4)2SO4，则测定结果将（ ）。 A、偏高 B、偏低 C、基本不变 D、偏高或偏低 53、下述情况中，使分析结果产生负误差的是（ ）。
A、以盐酸标准溶液滴定某碱样，所用滴定管未用酸液润洗，滴定管内壁挂有水滴。
B、以H2C2O4?2H2O作基准物质来标定NaOH溶液的浓度。因保存不当，草酸失去部分结晶水，用此草酸标定NaOH溶液的浓度。
C、用于标定标准溶液的基准物质在称量时吸潮了。
D、滴定时速度过快，并在到达终点后立即读取滴定管的读数。 54、影响弱酸盐沉淀溶解度的主要因素是（ ）。
A、水解效应 B、酸效应 C、盐效应 D、络合效应
55、在光度分析中，常出现工作曲线不过原点的情况，下述说法中不会引起这一现象的是（ ）。
A、测量液和参比溶液所用比色皿不对称 B、参比溶液选择不当 C、显色反应的灵敏度太低 D、显色反应的检测下限太高 56、下列器皿需要用待装液润洗的是（ ）。
A、锥形瓶，量筒。 B、移液管，容量瓶。 C、移液管，滴定管。 D、容量瓶，滴定管。 57、在 EDTA 络合滴定中，以下结论中正确的是（ ）。
A、酸效应系数愈大，络合物的稳定性愈大。 B、酸效应系数愈小，络合物的稳定性愈大。 C、pH 值愈大，酸效应系数愈大。
D、酸效应系数愈大，络合滴定曲线的 pM 突跃范围愈大。
58、在太空中，如果想在未来中国空间站中进行以下实验，你认为其中最难完成的是（ ）。 A、将金属粉与铜粉混合 B、将牛奶加入水中混合
C、蒸发食盐水制取食盐固体 D、用漏斗、滤纸过滤除去水中泥沙 59、影响有色络合物的摩尔吸光系数的因素 是（ ）。
A、比色皿的厚度 B、入射光的波长 C、有色物质的浓度 D、入射光的强度 60、下面哪种溶液已不具备缓冲能力 （ ）。
eople-oriented in the name of reducing our enthusiasm. Premier Wen Jiabao's Government work report this year, identified as 7% growth, 2.1% lower than last year's 9.1%, but in 8 work remains to accelerate development in the first place ... Work standards. Second is to use the scale of development to understand. Society is evolving, human needs are also changing. Practice of humanism is a long-term process and cannot be achieved overnight. To treat people if you stand still and rigid dogma, it is possible to return to this, see things but not people's old ways. Therefore, we have to follow the development of the times, and continue debugging the humanist perspective, innovative people-oriented way. Under the new historical conditions, we are requested by the times, set up a brand new concept, a high starting point, high standard of armed people, shaping, exercise, people, constantly taking the new connotation of the times. erms of Office, is to lead the vast numbers of cadres to actively adapt to the knowledge faster and actively adapt to the increasingly high level of leadership situation, actively adapt to the demand
of the masses more and more situations, eager to learn, enhance accumulation, efforts, honed the ability to overcome a good service, panic. Third is to use realistic understanding. Adhere to people-oriented must be based on reality, not divorced from reality. Desk no water cups here in Hong Kong, staff need to drink some water to the drinking fountain on a floor, the glass used is a one-time non-cone type. Drink this cup can only hold, cannot be put down. This is not only to save on glass materials, more important is to force you to get drinking water, go back to your seat business. Our emphasis on people-oriented, does not imply you can indulge the desires, the comfortable, the pursuit of enjoyment. Office of the party committees at all levels of our comrades, must continue to maintain the style of plain living and hard struggle, to stand up to the tests of temptations, exciting \sposition\spirit of selfless dedication and provide services. Investee 4. clearly defined responsibilities. Putting people first is a common vision of development, everyone is a liability. People-oriented, above and below with the responsibility for coordinating system must be established and hold everyone accountable. First, we must strengthen the leadership. \ce, its governance, its level, bear the responsibility of the Division.\s the minimum requirement for leaders, is a measure of the basic criteria for whether a leading cadre is competent. Leaders need to \official term for the benefit of\consciously assume responsibility for implementing people-oriented. Director of the Office of the party committees at all levels is the responsibility of the units to implement people-oriented, to manage their people, %ug in own responsibility\ducation of leading cadres, cadres and cadres work, efforts to revitalize the Office of human resources, Office work is full of vigor and vitality8
well, with the effectiveness of services to defend the interests of the masses. Third, we should strive to do well. To achieve good practical results, the key is to know the law, to grasp the laws and using laws. Office of economic development, social progress, there are rules to follow. Only act according to the law, to overcome blindness and strengthening initiative, creative. Working in the Office, we should be good at analyzing the essence of things, to find regular thing, change from passive to active, to seek one. Investee 2. establishment of evaluation system. Evaluation system is essentially an incentive mechanism, the evaluation was objective and fair, reasonable, and can stimulate a person's energy, mobilizing people's enthusiasm or be misleading, dampened the enthusiasm of people. At present, the concept of people-oriented people, but to establish and perfect evaluation system is still lagging behind. Work in this area should be seriously caught up. \ee emphasis on\of. Is a focus on standards and scientific. A fundamental point of the evaluation criteria, is to keep contact, development, comprehensive eye evaluation of cadres. Office work, both \nd \both subjective efforts, take another look at the objective condition; both \nother look at the \on participating the breadth of the subject. Evaluation of cadres must give full play to democracy, cadres and the masses handing over evaluation. Office work services leadership and service base, serve the people, then nominated the main object will contain a variety of services, so that assessment was accurate and to avoid one-sidedness. Third, pay attention to the seriousness of the conclusion. The use of evaluation findings is mainly embodied in his direction. Permitted to choose one, it would be tantamount to establishing a banner. Evaluation can't take care of the balance, otherwise it would undermine the offset the positive significance of evaluation. Office of the party committees at all levels should take the findings as on the cadres ' bonus-penalty, an important basis for future movements, incentive and restraint effect of making evaluations. 3. Prevention of understanding \d development, concrete is dialectical,. In practice in the process, to prevent one-sided and still look, from actual people. One is to use dialectical point of view to understand. Humanist is the core of the scientific Outlook on development, remains the development of the scientific Outlook on development emphasizes, is still taking economic construction as the Center. Any departure from the development of thought and action, is a misinterpretation and misunderstanding of people-oriented. Adhere to people-oriented both to overcome one-sidedness of the old, but also to prevent one-sidedness, not accelerating the development of people and the opposition. Must be very clear, people oriented and speeding up development is not opposed, but consistent, we should never be第一届广东省大学生化学实验竞
赛
A、1 mol?L?1 HCl B、0.1 mol?L?1 HAc ~ 0.1 mol?L?1 NaAc C、1 mol?L?1 NaOH D、0.1 mol?L?1 HAc ~ 0.001 mol?L?1 NaAc 61、在进行蒸馏实验时，以下加热和通水的顺序中，（ ）是正确的。
A、加热、通水；停水、灭火 B、通水、加热；停水、灭火 C、通水、加热；灭火、停水 D、加热、通水；灭火、停水 62、以下试剂中，（ ）所含的微量水分不能用金属钠来除去。
A、脂肪烃 B、乙醚 C、二氯甲烷 D、芳烃
63、在合成反应过程中，利用哪种色谱技术来监控反应的进程，最便利最省时的是（ ）。
A、柱色谱 B、薄层色谱 C、纸色谱 D、凝胶色谱 64、柚皮香精油具有令人喜爱的强烈芳香气味，是饮料、啤酒、糖果等食品的矫味剂、赋香剂，也是许
多日化产品的增香剂。以下方法中，（ ）不适合于柚子皮香精油的提取。
A、超临界流体萃取 B、水蒸汽蒸馏 C、溶剂萃取，再经普通蒸馏 D、升华法 65、苏丹红是一种化学染色剂，并非食品添加剂。它具有致癌性，对人体肝肾等器官有明显的毒性作用。
然而，近年有报道不法分子在辣椒粉食品中常有添加该色素。如果用薄层色谱分析苏丹红I（结构如下），则在以下展开剂中，（ ）的Rf最小。
苏丹红I的结构
A、环己烷 B、氯仿 C、乙酸乙酯 D、甲醇 66、对以下结构所示化合物的描述中，错误的是（ ）。
A、是一种三嗪类含氮杂环有机化合物，呈弱碱性。
B、可用于食品加工或作为食品添加物，以提升食品检测中的蛋白质（即氮）含量。 C、可以用作阻燃剂、减水剂、甲醛清洁剂。
D、可与盐酸、硫酸、硝酸、乙酸、草酸等反应形成盐。
67、分子式C4H8有多个异构体，以下化合物中，（ ）的1H NMR有四个不同的信号。
A、2-丁烯 B、1-丁烯 C、2-甲基丙烯 D、环丁烷 68、在IR谱中于1721 cm-1处有强的吸收，则该吸收是由（ ）官能团产生的。
A、
，伸缩振动。 B、C=O，弯曲振动。
C、C=C，摇摆振动。 D、C=O，伸缩振动。
69、若只考虑π到π*的跃迁，下列化合物中，预期（ ）的λmax值最大。
eople-oriented in the name of reducing our enthusiasm. Premier Wen Jiabao's Government work report this year, identified as 7% growth, 2.1% lower than last year's 9.1%, but in 8 work remains to accelerate development in the first place ... Work standards. Second is to use the scale of development to understand. Society is evolving, human needs are also changing. Practice of humanism is a long-term process and cannot be achieved overnight. To treat people if you stand still and rigid dogma, it is possible to return to this, see things but not people's old ways. Therefore, we have to follow the development of the times, and continue debugging the humanist perspective, innovative people-oriented way. Under the new historical conditions, we are requested by the times, set up a brand new concept, a high starting point, high standard of armed people, shaping, exercise, people, constantly taking the new connotation of the times. erms of Office, is to lead the vast numbers of cadres to actively adapt to the knowledge faster and actively adapt to the increasingly high level of leadership situation, actively adapt to the demand of the masses more and more situations, eager to learn, enhance accumulation, efforts, honed the ability to overcome a good service, panic. Third is to use realistic understanding. Adhere to people-oriented must be based on reality, not divorced from reality. Desk no water cups here in Hong Kong, staff need to drink some water to the drinking fountain on a floor, the glass used is a one-time non-cone type. Drink this cup can only hold, cannot be put down. This is not only to save on glass materials, more important is to force you to get drinking water, go back to your seat business. Our emphasis on people-oriented, does not imply you can indulge the desires, the comfortable, the pursuit of enjoyment. Office of the party committees at all levels of our comrades, must continue to maintain the style of plain living and hard struggle, to stand up to the tests of temptations, exciting \sposition\spirit of selfless dedication and provide services. Investee 4. clearly defined responsibilities. Putting people first is a common vision of development, everyone is a liability. People-oriented, above and
below with the responsibility for coordinating system must be established and hold everyone accountable. First, we must strengthen the leadership. \ce, its governance, its level, bear the responsibility of the Division.\s the minimum requirement for leaders, is a measure of the basic criteria for whether a leading cadre is competent. Leaders need to \official term for the benefit of\consciously assume responsibility for implementing people-oriented. Director of the Office of the party committees at all levels is the responsibility of the units to implement people-oriented, to manage their people, %ug in own responsibility\ducation of leading cadres, cadres and cadres work, efforts to revitalize the Office of human resources, Office work is full of vigor and vitality第9页 共15页
well, with the effectiveness of services to defend the interests of the masses. Third, we should strive to do well. To achiev good practical results, the key is to know the law, to grasp the laws and using laws. Office of economic development, social progress, there are rules to follow. Only act according to the law, to overcome blindness and strengthening initiative, creative. Working in the Office, we should be good at analyzing the essence of things, to find regular thing, change from passive to active, to seek one. Investee 2. establishment of evaluation system. Evaluation system is essentially an incentive mechanism, the evaluation was objective and fair, reasonable, and can stimulate a person's energy, mobilizing people's enthusiasm or be misleading, dampened the enthusiasm of people. At present, the concept of people-oriented people, but to establish and perfect evaluation system is still lagging behind. Work in this area should be seriously caught up. \ emphasis on\o take advantage of. Is a focus on standards and scientific. A fundamental point of the evaluation criteria, is to keep contact, developmentcomprehensive eye evaluation of cadres. Office work, both \ntial performance\h subjective efforts, take another look at the objective condition; both \h, take another look at the \d, focus on participating the breadth of the subject. Evaluation of cadres must give full play to democracy, cadres and the masses handing over evaluation. Office work services leadership and service base, serve the people, then nominated the main object will contain a variety of services, so that assessment was accurate and to avoid one-sidedness. Third, pay attention to the seriousness of the conclusion. The use of evaluation findings is mainly embodied in his direction. Permitted to choose one, it would be tantamount to establishing a banner. Evaluation can't take care of the balance, otherwise it would undermine the offset the positive significance of evaluation. Office of the party committees at all levels should take the findings as on the cadres ' bonus-penalty, an important basis for future movements, incentive and restraint effect of making evaluations. 3. Prevention ofunderstanding \d development, concrete is dialectical,. In practice in the process, to prevent one-sided and still look, from actual people. One is to use dialectical point of view to understand. Humanist is the core of the scientific Outlook on development, remains the development of the scientific Outlook on development emphasizes, is still taking economic construction as the Center. Any departure from the development of thought and action, is a misinterpretation and misunderstanding of people-oriented. Adhere to people-oriented both to overcome one-sidedness of the old, but also to prevent one-sidedness, not accelerating the development of people and the opposition. Must be very clear, people oriented and speeding up development is not opposed, but consistent, we should never be70、久置的苯胺呈红棕色，用（ ）方法对其精制。
A、过滤 B、活性炭脱色 C、蒸馏 D、水蒸气蒸馏 71、1-溴丁烷最后一步蒸馏提纯前应采用的干燥剂是（ ）。
A、Na B、无水CaCl2 C、无水CaO D、KOH 72、以下试剂中，（ ）不能用于鉴别醛。
A、2,4-二硝基苯肼 B、碘-碘化钾 C、三氯化铁 D、银铵溶液 73、下列有机化合物中，（ ）在HCl水溶液中的溶解性最大。
A、C6H5-C6H4-OH B、C6H5-CH2-COOH C、C6H5-CH2-Cl D、C6H5-CH2-NH2
74、在以溴苯、镁、苯甲酸甲酯为原料制备三苯甲醇的实验中，水蒸气蒸馏时不被蒸出的是 ( )。 A、三苯甲醇 B、苯甲酸甲酯 C、溴苯 D、联苯 75、乙酸乙酯中含有以下（ ）杂质时，可用简单蒸馏的方法提纯乙酸乙酯。
A、丁醇 B、有色有机杂质 C、乙酸 D、水 76、下列有机试剂中能使FeCl3显色的是 （ ）。
A、阿斯匹林 B、乙酰苯胺 C、正丁醇 D、水杨酸
77、呋喃甲醛在浓碱条件下进行坎尼扎罗（Cannizzaro）反应可制得相应的（ ）。
A、醇和酸 B、醇和醛 C、醇和酮 D、酮和酸 78、在色谱中，吸附剂对样品的吸附能力与（ ）有关。
A、吸附剂的含水量 B、吸附剂的粒度 C、洗脱溶剂的极性 D、洗脱溶剂的流速
79、在乙酸正丁酯的制备实验中，为了加快反应速率，一般要加入催化剂。以下不能用作该反应催化剂
的是（ ）。
A、无水NaCO3 B、浓硫酸 C、对甲苯磺酸 D、强酸性树脂
80、分馏法可以分离两种沸点相近的液体混合物。为了取得满意的分离效果，用分馏法分离混合物时必
须注意下列几点 （ ）。
① 控制好加热温度和恒定的蒸馏速度 ② 分馏柱必须保持回流液，选择合适的回流比 ③ 用石棉带包住分馏柱的外围以减少柱内热量散失 ④ 选择较长的分馏柱，分馏时宜直接加热
A、①② B、①③ C、①②③ D、①②③④ 81、用无水硫酸镁干燥液体产品时，以下说法中不正确的是（ ）。
A、由于无水MgSO4是高效干燥剂，所以一般干燥5~10 min就可以了。
B、干燥剂的用量可视粗产品的多少和混浊程度而定，用量过多，由于MgSO4 干燥剂的表面吸附，会使产品损失。
C、用量过少，则 MgSO4便会溶解在所吸附的水中。
D、一般干燥剂用量以摇动锥形瓶时，干燥剂可在瓶底自由移动，一段时间后溶液澄清为宜。 82、关于折光率的下列说法中，正确的是（ ）。
A、折光率是物质的特性常数。 B、报告折光率时无需注出所用光线的波长。 C、测定折光率时，环境温度对其无影响。
D、折光率可作为物质纯度的标志，也可用来鉴定未知物。 83、使用分液漏斗进行分液时，下列操作中正确的做法是（ ）。
A、分离液体时，分液漏斗上的小孔未与大气相通就打开旋塞。 B、分离液体时，将漏斗拿在手中进行分离。
C、上层液体经漏斗的上口放出。 D、没有将两层间存在的絮状物放出。
eople-oriented in the name of reducing our enthusiasm. Premier Wen Jiabao's Government work report this year, identified as 7% growth, 2.1% lower than last year's 9.1%, but in 8 work remains to accelerate development in the first place ... Work standards. Second is to use the scale of development to understand. Society is evolving, human needs are also changing. Practice of humanism is a long-term process and cannot be achieved overnight. To treat people if you stand still and rigid dogma, it is possible to return to this, see things but not people's old ways. Therefore, we have to follow the development of the times, and continue debugging the humanist perspective, innovative people-oriented way. Under the new historical conditions, we are requested by the times, set up a brand new concept, a high starting point, high standard of armed people, shaping, exercise, people, constantly taking the new connotation of the times. erms of Office, is to lead the vast numbers of cadres to actively adapt to the knowledge faster and actively adapt to the increasingly high level of leadership situation, actively adapt to the demand
of the masses more and more situations, eager to learn, enhance accumulation, efforts, honed the ability to overcome a good service, panic. Third is to use realistic understanding. Adhere to people-oriented must be based on reality, not divorced from reality. Desk no water cups here in Hong Kong, staff need to drink some water to the drinking fountain on a floor, the glass used is a one-time non-cone type. Drink this cup can only hold, cannot be put down. This is not only to save on glass materials, more important is to force you to get drinking water, go back to your seat business. Our emphasis on people-oriented, does not imply you can indulge the desires, the comfortable, the pursuit of enjoyment. Office of the party committees at all levels of our comrades, must continue to maintain the style of plain living and hard struggle, to stand up to the tests of temptations, exciting \sposition\spirit of selfless dedication and provide services. Investee 4. clearly defined responsibilities. Putting people first is a common vision of development, everyone is a liability. People-oriented, above and below with the responsibility for coordinating system must be established and hold everyone accountable. First, we must strengthen the leadership. \ce, its governance, its level, bear the responsibility of the Division.\s the minimum requirement for leaders, is a measure of the basic criteria for whether a leading cadre is competent. Leaders need to \official term for the benefit of\consciously assume responsibility for implementing people-oriented. Director of the Office of the party committees at all levels is the responsibility of the units to implement people-oriented, to manage their people, %ug in own responsibility\ducation of leading cadres, cadres and cadres work, efforts to revitalize the Office of human resources, Office work is full of vigor and vitality10