广东工业大学无机化学2007年考研真题/研究生入学考试试题
华南理工大学_无机化学2007年_考研专业课真题
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2+ 3+ 2+ (D)E ( MnO 4 / Mn ) –5 E (Fe / Fe ) = 0
16. 如果往 1 升 0.10 mol· L 的 NH3 水溶液中加入一些 NH4Cl 固体,其结果会使: (A)NH3 水的电离常数 Kb 增大 (B)NH3 水的电离常数 Kb 减小 (C)溶液的 pH 值增大 (D)溶液的 pH 值减小 17. 下列各组元素中,性质最相似的两种元素是: (A) Mg 和 Al (B) Zr 和 Hf (C) Ag 和 Au (D) Fe 和 Co 18. 下列物质和水反应,得不到 H2O2 的是: (A) K2O2 (B) Na2O2 (C) KO2 (D) Na2O 19. 下列溶液中 pH 值最小的是: (A)0.200 mol· L 的氨水中加入等体积的 0.200 mol· L 的 HCl (B)0.200 mol· L1 的氨水中加入等体积的水 (C)0.200 mol· L1 的氨水中加入等体积的 0.200 mol· L1 的 H2SO4 (D)0.200 mol· L1 的氨水中加入等体积的 0.200 mol· L1 的 NH4Cl 20. 最适合[Fe(H2O)6]2+(μ=5.0 B.M.)描述的是: (A) sp3d2 杂化,顺磁性 (B) sp3d2 杂化,反磁性 (C) d2sp3 杂化,顺磁性 (D) d2sp3 杂化,反磁性
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(B)Mn2+、 MnO4 和 MnO2 (C)Mn2+、Mn3+ 和 MnO2 (D) MnO4 、Mn3+ 和 Mn2+ 10. 在 CuSO4 溶液中加入过量的碳酸钠溶液,通常形成的产物是: (A) Cu(HCO3)2 (B) CuCO3 (C) Cu2(OH)2CO3
广东工业大学812物理化学2000--2010年考研真题/研究生入学考试试题
11 298K将AgNO3滴入KI(过量)溶液中形成的溶胶,下列电解质中哪种聚沉能力最大?( A LiNO3 B KNO3 C CaCl2 D Na2SO4
12.下列性质中哪个不属于胶体的性质( ) A.布朗运动 B.电导 C.电泳 D.沉降平衡 13.气体被液化的必要条件是( ) A.气体温度低于沸点 B.气体温度低于临界温度 C.气体压力大于临界压力 D.气体温度小于波义尔温度 14. 一定体积的水,当分散成许多小水滴,同温度下两种状态相比,以下性质保持不变的是( ) A.饱和蒸汽压 B.表面积 C.液面下的附加压力 D.表面张力 15. 将半径相同的三根玻璃毛细管分别插入乙醇水溶液、NaCl水溶液及纯水中,毛细管中液面上 升的高度分别为h1、、h2、h3则( A h1>h2>h3 ; B h3>h2>h1 ; 二.填充题(20分,每题2分) 1. 斯特恩双电层包括 和 。 。 )。 D h2>h3>h1 。
5.当电流通过电极时,电极电位偏离平衡电极电位称为_________,原电池放电时,随电流密 度的增加,阳极电位变_________,阴极电位变________,输出电压变_________。 6. A、B两物质形成最低恒沸点的相图,当系统组成在恒沸组成以左时通过精馏在气相得到_____ _____,在瓶中得到_____________。 7. 对大多数纯物质的液体来说,当温度升高时,其表面张力__________。 8. Langmuir吸附适用于___________________,其吸附等温式为____________________。 9 加入催化剂后,反应速率加快的原因是________________________________________。 10. 由FeCl3 水解制得Fe(OH)3溶胶,稳定剂为FeCl3,请写出溶胶的胶团结构 。 三.简答题(25分,每题5分) 1.在一个底部为光滑平面的真空容器中,放有半径大小不等的圆球形汞滴,经过长时间放置 后,会出现什么现象。为什么? 答:会出现大液滴变大,小液滴消失的现象。这是因为大液滴的饱和蒸气压低,小液滴的饱和 蒸气压高,小液滴不断蒸发,并凝聚到大液滴中。 2.一密闭的容器处于恒温环境,容器内有两杯液体,A杯为纯水,B杯为蔗糖水溶液,静置足够 长时间后,观察其变化,你会发现什么现象。 3.自然界发生的一切过程,都遵守能量守恒和转换定律,那么凡是遵守能量守恒和转换定律 的一切过程都能自发进行吗?
考研化学试题2007考研题七卷无机答案
普化无机试卷 答案(7)一、选择题 ( 共20题 40分 )1.(3889) (B)2. (0376) (D)3.(3963) (D)4.(0187) (C)5. (0409) (C)6. (4403) (C)7. (0250) (A)8. (4037) (D) 9. (1572) (A) 10. (0401) (A) 11. (1422) (A) 12. (0261) (B) 13. (7058) (D) 14. (4604) (A)15. (0428) (C) 16. (1322) (A) 17. (4077) (B) 18. (1661) (A) 19. (3484) (D) 20. (1305) (D)二、填空题 ( 共14题 40分 )21. (2126) V 价电子5,配合6个CO ,共17个电子,生成二聚体满足ENA 规则。
V 2(CO)12;该分子在V 的周围有7个邻居,空间阻碍使其不稳定。
22. (1724) 99246Es ; 98252Cf ; 94239Pu ; 91231Pa ;23. (0827) (A) m =d d p t (B) m =-k 230. (C) m =-E R a 230. (D) m =R H 30.2m r ∆- 24. (2213) (2),(3),(6) 25. (3884) 一直线,斜率 26. (2312) p27. (4204) r (-3I ) > r (-I ),根据大阴离子与大阳离子结合稳定,小阴离子与小阳离子结合稳定的观点,则稳定性CsI 3 > LiI 3。
28. (3314) 1.42 mol ·kg -1 29. (0949) 3d 54s 1, 3d xy 3d xz 3d yZ 322y x d- 32z d30. (3133) 1/4 ; 1/2 。
31. (0431) (1) +;(2) +;(3) +;(4) + 32. (1561) 2Cu 2+ + 4CN -−→−2CuCN ↓+ (CN)2 2Cu 2+ + 6CN -−→−2-2Cu(CN)+ (CN)233. (2322) p ,n 34. (1234) 不易被X 射线透过,溶解度非常小而不溶于胃酸。
广东工业大学考研历年真题
广东工业大学考研历年真题【第一部分:单项填空】1. However, some actors _____ us with the deep feelings they can inspire in us for a character they are playing. [单选题] *A.astonishedB. astonishingC. astonish(正确答案)D. is astonished2. He was a _____ figure in the French film industry. [单选题] *A. dominantlyB. dominant(正确答案)C. dominanceD. dominants3. The morning after your arrival, you meet with the _____ physician for a private consultation. [单选题] *A. residentsB. resident(正确答案)C. residenceD. residences4._____a reply, he decided to write again. [单选题] *A. Not receivingB. ReceivingC. Not having received(正确答案)D. Having not received5.With lots of trees and flowers _____here and there, the city looks very beautiful. [单选题] *A. having plantedB. planted(正确答案)C. have been plantedD. to be planted6. I have bought two ball-pens, _______ writes well. [单选题] *A. none of themB. neither of themC. neither of which(正确答案)D. none of which7.Great changes have taken place since then in the factory _______we are working. [单选题] *A.where(正确答案)B.hatC.whichD.there8.The engineer ______my father works is about 50 years old. [单选题] *A. to whomB. on whomC. with whichD. with whom(正确答案)9.The reason ______he didn't come was ______he was ill. [单选题] *A. why; that(正确答案)B.that;whyC. for that;thatD.for which;what10. Is _______ some German friends visited last week? [单选题] *A. this schoolB. this the schoolC. this school oneD. this school where(正确答案)11. They are not very good, but we like_______. [单选题] *A. anyway to play basketball with themB. to play basketball with them anyway(正确答案)C. to play with them basketball anywayD. with them to play basketball anyway12. He sent me an e-mail, _______to get further information. [单选题] *A. hopedB hoping(正确答案)C. to hopeD. hope13._____in 1636, Harvard is one of the most famous universities in the United States. [单选题] *A. Being roundedB it was foundedC. Founded(正确答案)D. Founding14.The ____boy was last seen ______near the East Lake. [单选题] *A. Missing, playing(正确答案)B. missing, playC missed, playedD missed, to play15. Tony was very unhappy for _______ to the party. [单选题] *A. having not been invitedB. not having invitedC. having not invitedD not having been invited(正确答案)【第二部分:完形填空】A new study found that inner-city kids living in neighborhoods with more green spacegained about 13% less weight over a two-year period than kids living amid more concrete and fewer trees. Such __62__ tell a powerful story. The obesity epidemic began in the 1980s, and many people __63__ it to increased portion sizes and inactivity, but that can't be everything. Fast foods and TVs have been __64__ us for a long time. "Most experts agree that the changes were __65__ to something in the environment," says social epidemiologist Thomas Glass of The Johns Hopkins Bloomberg School of Public Health. That something could be a __66__ of the green.The new research, __67__ in the American Journal of Preventive Medicine, isn't the first to associate greenery with better health, but it does get us closer __68__ identifying what works and why. At its most straightforward, a green neighborhood __69__ means more places for kids to play – which is __70__ since time spent outdoors is one of the strongest correlates of children's activity levels. But green space is good for the mind__71__: research by environmental psychologists has shown that it has cognitive __72__ for children with attention-deficit disorder. In one study, just reading __73__ in a green setting improved kids' symptoms.__74__ to grassy areas has also been linked to __75__ stress and a lower body mass index (体重指数) among adults. And an __76__ of 3,000 Tokyo residents associated walkable green spaces with greater longevity (长寿) among senior citizens.Glass cautions that most studies don't __77__ prove a causal link between greenness and health, but they're nonetheless helping spur action. In September the U. S. House of Representatives __78__ the delightfully named No Child Left Inside Act to encourage public initiatives aimed at exposing kids to the outdoors.Finding green space is not __79__ easy, and you may have to work a bit to get your family a little grass and trees. If you live in a suburb or a city with good parks, take__80__ of what's there. Your children in particular will love it – and their bodies and minds will be __81__ to you.16. [单选题] *A) findings(正确答案)B) thesesC) hypothesesD) abstracts17. [单选题] *A) adaptB) attribute(正确答案)C) allocateD) alternate18. [单选题] *A) amongstB) alongC) besideD) with(正确答案)19. [单选题] *A) gluedB) related(正确答案)C) trackedD) appointed20. [单选题] *A) scrapingB) denyingC) depressingD) shrinking(正确答案)21. [单选题] *A) published(正确答案)B) simulatedC) illuminatedD) circulated22. [单选题] *A)atB)to(正确答案)C)forD)over23. [单选题] *A) fullyB) simply(正确答案)C) seriouslyD) uniquely24. [单选题] *A)vital(正确答案)B)casualC)fatalD)subtle25. [单选题] *A) stillB) alreadyC) too(正确答案)D) yet26. [单选题] *A) benefits(正确答案)B) profitsC) revenuesD) awards27. [单选题] *A) outwardB) apartC) asideD) outside(正确答案)28. [单选题] *A) ImmunityB) ReactionC) Exposure(正确答案)D) Addiction29. [单选题] *A)muchB)less(正确答案)C)moreD)little30. [单选题] *A) installmentB) expeditionC) analysis(正确答案)D) option31. [单选题] *A) curiouslyB) negativelyC) necessarily(正确答案)D) comfortably32. [单选题] *A) relievedB) delegatedC) approved(正确答案)D) performed33. [单选题] *A)merelyB)always(正确答案)C)mainlyD)almost34. [单选题] *A) advantage(正确答案)B) exceptionC) measureD) charge35. [单选题] *A) elevatedB) mercifulC) contentedD) grateful(正确答案)【第三部分:阅读理解】Passage 1Will there ever be another Einstein? This is the undercurrent of conversation at Einstein memorial meetings throughout the year. A new Einstein will emerge, scientists say. But it may take a long time. After all, more than 200 years separated Einstein from his nearest rival, Isaac Newton.Many physicists say the next Einstein hasn’t been born yet, or is a baby now. That’s because the quest for a unified theory that would account for all the forces of nature has pushed current mathematics to its limits. New math must be created before the problem can be solved.But researchers say there are many other factors working against another Einsteinemerging anytime soon.For one thing, physics is a much different field today. In Einstein’s day, there were only a few thousand physicists worldwide, and the theoreticians who could intellectually rival Einstein probably would fit into a streetcar with seats to spare.Education is different, too. One crucial aspect of Einstein’s training that is overlooked is the years of philosophy he read as a teenager—Kant, Schopenhauer and Spinoza, among others. It taught him how to think independently and abstractly about space and time, and it wasn’t long before he became a philosopher himself.“The independence created by philosophical insight is—in my opinion—the mark of distinction between a mere artisan (工匠) or specialist and a real seeker after truth,”Einstein wrote in 1944.And he was an accomplished musician. The interplay between music and math is well known. Einstein would furiously play his violin as a way to think through a knotty physics problem.Today, universities have produced millions of physicists. There aren’t many jobs in science for them, so they go to Wall Street and Silicon Valley to apply their analytical skills to more practical—and rewarding—efforts.“Maybe there is an Einstein out there today,” said Columbia University physicist Brian Greene, “but it would be a lot harder for him to be heard.”Especially considering what Einstein was proposing.“The actual fabric of space and time curving? My God, what an idea!” Greene said at a recent gathering at the Aspen Institute. “It takes a certain type of person who will bang his head against the wall because you believe you’ll find the solution.”Perhaps the best examples are the five scientific papers Einstein wrote in his “miracle year” of 1905. These “thought experiments” were pages of calculations signed and submitted to the prestigious journal Annalen der Physik by a virtual unknown. There were no footnotes or citations.What might happen to such a submission today?“We all get papers like those in the mail,” Greene said. “We put them in the junk file.”36. What do scientists seem to agree upon, judging from the first two paragraphs? [单选题] *[A] Einstein pushed mathematics almost to its limits.[B] It will take another Einstein to build a unified theory.[C] No physicist is likely to surpass Einstein in the next 200 years.[D] It will be some time before a new Einstein emerges.(正确答案)37. What was critical to Einstein’s success? [单选题] *[A] His talent as an accomplished musician.[B] His independent and abstract thinking.(正确答案)[C] His untiring effort to fulfill his potential.[D] His solid foundation in math theory.38. What does the author tell us about physicists today? [单选题] *[A] They tend to neglect training in analytical skills.[B] They are very good at solving practical problems.[C] They attach great importance to publishing academic papers.[D] They often go into fields yielding greater financial benefits.(正确答案)39. What does Brian Greene imply by saying “... it would be a lot harder for him to be heard” (Lines 1-2, Para. 9)? [单选题] *[A] People have to compete in order to get their papers published.[B] It is hard for a scientist to have his papers published today.[C] Papers like Einstein’s would unlikely get published today.[D] Nobody will read papers on apparently ridiculous theories.(正确答案)40. When he submitted his papers in 1905, Einstein _______. [单选题] *[A] forgot to make footnotes and citations[B] was little known in academic circles(正确答案)[C] was known as a young genius in math calculations[D] knew nothing about the format of academic papersPassage 2The relationship between formal education and economic growth in poorcountries is widely misunderstood by economists and politicians alike. Progress in both areas is undoubtedly necessary for the social, political, and intellectual development of these and all other societies; however, the conventional view that education should be one of the very highest priorities for promoting rapid economic development in poor countries is wrong. We are fortunate that it is, because building new educational systems there and putting enough people through them to improve economic performance would require two or three generations. The findings of a research institution have consistently shown that workers in all countries can be trained on the job to achieve radically higher productivity and, as a result, radically higher standards ofliving.Ironically, the first evidence for this idea appeared in the United States. Not long ago, with the country entering a recession and Japan at its pre-bubble peak, the U.S. workforce was derided as poorly educated and one of the primary causes of the poor U.S. economic performance. Japan was, and remains, the global leader in automotive-assembly productivity. Yet the research revealed that the U.S. factories of Honda, Nissan, and Toyota achieved about 95 percent of the productivity of their Japanese counterparts - a result of the training that U.S. workers received on the job.More recently, while examining housing construction, the researchers discoveredthat illiterate, non-English-speaking Mexican workers in Houston, Texas, consistently met best-practice labor productivity standards despite the complexity of the building industry's work.What is the real relationship between education and economic development? Wehave to suspect that continuing economic growth promotes the development of education even when governments don't force it. After all, that's how education got started. When our ancestors were hunters and gatherers 10, 000 years ago, they didn't have time to wonder much about anything besides finding food. Only when humanity began to get its food in a more productive way was there time for other things.As education improved, humanity's productivity potential increased as well.When the competitive environment pushed our ancestors to achieve that potential,they could in tum afford more education. This increasingly high level of education is probably a necessary, but not a sufficient, condition for the complex political systems required by advanced economic performance. Thus poor countries might not be ableto escape their poverty traps without political changes that may be possible only with broader formal education. A lack of formal education, however, doesn't constrain the ability of the developing world's workforce to substantially improve productivity forthe foreseeable future. On the contrary, constraints on improving productivity explain why education isn't developing more quickly there than it is.41. The author holds in Paragraph 1 that the importance of education in poor [单选题] * countries[A] is subject to groundless doubts.[B] has fallen victim of bias.[C] is conventionally downgraded.[D] has been overestimated.(正确答案)42. It is stated in Paragraph 1 that the construction of a new educational system [单选题] *[A] challenges economists and politicians.[B] takes efforts of generations.(正确答案)[C] demands priority from the government.[D] requires sufficient labor force.43. A major difference between the Japanese and U.S. workforces is that [单选题] *[A] the Japanese workforce is better disciplined.[B] the Japanese workforce is more productive.(正确答案)[C] the U.S. workforce has a better education.[D] the U.S. workforce is more organized.44. The author quotes the example of our ancestors to show that education emerged [单选题] *[A] when people had enough time.[B] prior to better ways of finding food.[C] when people no longer went hungry.(正确答案)[D] as a result of pressure on government.45. According to the last paragraph, development of education [单选题] *[A] results directly from competitive environments.[B] does not depend on economic performance.[C] follows improved productivity.(正确答案)[D] cannot afford political changes.Passage 3A symbiotic relationship is an interaction between two or more species in which one species lives in or on another species. There are three main types of symbiotic relationships: parasitism, commensalism, and mutualism. The first and the third can be key factors in the structure of a biological community; that is, all the populations oforganisms living together and potentially interacting in a particular area.Parasitism is a kind of predator-prey relationship in which one organism, the parasite, derives its food at the expense of its symbiotic associate, the host. Parasites are usually smaller than their hosts. An example of a parasite is a tapeworm that lives inside the intestines of a larger animal and absorbs nutrients from its host. Natural selection favors the parasites that are best able to find and feed on hosts. At the same time, defensive abilities of hosts are also selected for. As an example, plants make chemicals toxic to fungal and bacterial parasites, along with ones toxic to predatory animals (sometimes they are the same chemicals). In vertebrates, the immune system provides a multiple defense against internal parasites.At times, it is actually possible to watch the effects of natural selection in host-parasite relationships. For example, Australia during the 1940 s was overrun by hundreds of millions of European rabbits. The rabbits destroyed huge expanses of Australia and threatened the sheep and cattle industries. In 1950, myxoma virus, a parasite that affects rabbits, was deliberately introduced into Australia to control the rabbit population. Spread rapidly by mosquitoes, the virus devastated the rabbit population. The virus was less deadly to the offspring of surviving rabbits, however, and it caused less and less harm over the years. Apparently, genotypes (the genetic make-up of an organism) in the rabbit population were selected that were better able to resist the parasite. Meanwhile, the deadliest strains of the virus perished with their hosts as natural selection favored strains that could infect hosts but not kill them. Thus, natural selection stabilized this host-parasite relationship.In contrast to parasitism, in commensalism, one partner benefits without significantly affecting the other. Few cases of absolute commensalism probably exist, because it is unlikely that one of the partners will be completely unaffected. Commensal associations sometimes involve one species' obtaining food that is inadvertently exposed by another. For instance, several kinds of birds feed on insects flushed out of the grass by grazing cattle. It is difficult to imagine how this could affect the cattle, but the relationship may help or hinder them in some way not yet recognized.The third type of symbiosis, mutualism, benefits both partners in the relationship Legume plants and their nitrogen-fixing bacteria, and the interactions between flowering plantsand their pollinators, are examples of mutualistic association. In the first case, the plants provide the bacteria with carbohydrates and other organic compounds, and the bacteria have enzymes that act as catalysts that eventually add nitrogen to the soil, enriching it. In the second case, pollinators (insects, birds) obtain food from the flowering plant, and the plant has its pollen distributed and seeds dispersed much more efficiently than they would be if they were carried by the wind only. Another example of mutualism would be the bull's horn acacia tree, which grows in Central and South America. The tree provides a place to live for ants of the genus Pseudomyrmex. The ants live in large, hollow thorns and eat sugar secreted by the tree. The ants also eat yellow structures at the tip of leaflets: these are protein rich and seem to have no function for the tree except to attract ants. The ants benefit the host tree by attacking virtually anything that touches it. They sting other insects and large herbivores (animals that eat only plants) and even clip surrounding vegetation that grows near the tree. When the ants are removed, the trees usually die, probably because herbivores damage them so much that they are unable to compete with surrounding vegetation for light and growing space.The complex interplay of species in symbiotic relationships highlights an important point about communities: Their structure depends on a web of diverse connections among organisms.46.Which of the following statements about commensalism can be inferred from paragraph 1? [单选题] *[A]It excludes interactions between more than two species.[B]It makes it less likely for species within a community to survive.[C]Its significance to the organization of biological communities is small.(正确答案)[D]Its role in the structure of biological populations is a disruptive one.47.According to paragraph 2. which of the following is true of the action of natural selection on hosts and parasites? [单选题] *[A]Hosts benefit more from natural selection than parasites do.[B]Both aggression in predators and defensive capacities in hosts are favored for species survival.(正确答案)[C]The ability to make toxic chemicals enables a parasite to find and isolate its host.[D]Larger size equips a parasite to prey on smaller host organisms.48.Which of the following can be concluded from the discussion in paragraph 3 about theAustralian rabbit population? [单选题] *[A]Human intervention may alter the host, the parasite. and the relationship between them.(正确答案)[B]The risks of introducing outside organisms into a biological community are not worth the benefits.[C]Humans should not interfere in host-parasite relationships.[D]Organisms that survive a parasitic attack do so in spite of the natural selection process.49.According to paragraph 3, all of the following characterize the way natural selectionstabilized the Australian rabbit population EXCEPT: [单选题] *[A]The most toxic viruses died with their hosts.[B]The surviving rabbits were increasingly immune to the virus.[C]The decline of the mosquito population caused the spread of the virus to decline.(正确答案)[D]Rabbits with specific genetic make-ups were favored.50.According to paragraph 5. which of the following is NOT true of the relationshipbetween the bull's horn acacia tree and the Pseudomyrmex ants? [单选题] *[A]Ants defend the host trees against the predatory actions of insects and animals.[B]The acacia trees are a valuable source of nutrition for the ants.[C]The ants enable the acacia tree to produce its own chemical defenses.(正确答案)[D]The ants protect the acacia from having to compete with surrounding vegetation.。
考研化学试题2007考研题八卷无机答案
普化无机试卷答案(8)一、选择题( 共20题40分)1. (3882) (B)2. (0376) (D)3. (0954) (C)4. (0216) (D)5. (3484) (D)6. (4314) (B)7. (0260) (B)8. (7060)(D)9. (4681) (B)10. (3879)(D) 11. (1755) (B) 12. (0208) (D) 13. (7047)(C) 14. (4659) (B)15. (0440)(B) 16. (1742)(D) 17. (7003)(C) 18. (4645)(C) 19. (0404)(C) 20. (1343)(D)二、填空题( 共14题40分)21. 5 分(2126)V价电子5,配合6个CO,共17个电子,生成二聚体满足ENA规则。
V2(CO)12;该分子在V的周围有7个邻居,空间阻碍使其不稳定。
22. 5 分(1724) 99246Es; 98252Cf; 94239Pu; 91231Pa;23. 5 分(0828) 0,2,v =-d Ad()t= k (B)2。
v =13d Cd()t= k (A)2 (B)24. 5 分(2213) (2),(3),(6)25. 2 分(3894) v = -d[A]d t= k A [A]2,v =d[B]d t= k B [A]226. 2 分(2312) p27. 2 分(1440) P4 + 3OH-+ 3H2O == PH3↑+ 3H PO22-28. 2 分(3319) 5629. 2 分(3958) (1) Z (2) Y (3) X30. 2 分(0336)设空气组成为79% N2和21% O2 ,溶解量与分压力(或分体积)成正比23.5×79 % + 49.0×21 % = 28.9 cm331. 2 分(3487) -355.032. 2 分(4660)Ti + 6HF = TiF-26+ 2H+ + 2H2↑3Ti(OH)3 + 7HNO3(稀) = 3TiO(NO3)2 + NO↑+ 8H2O33. 2 分(2300) 阳离子和阴离子部位上的空位缺陷(Schottky缺陷)34. 2 分(4387) Na2SeO3三、计算题( 共3题20分)35. 10 分(6630)两种溶液等体积混合后:c(Mg2+) = 0.50 / 2 = 0.25 (mol·dm-3),c(NH3) = 0.10 / 2 = 0.050 (mol·dm-3)c(NH4Cl) = 0.020 / 2 = 0.010 (mol·dm-3)c(OH-) = K b cc碱盐= 1.8 ⨯ 10-5⨯00500010..= 9.0 ⨯ 10-5 (mol·dm-3)Q C = c(Mg2+) ⨯c(OH-)2 = 0.25 ⨯ (9.0 ⨯ 10-5)2 = 2.0 ⨯ 10-19 > K sp(Mg(OH)2)所以可以生成Mg(OH)2沉淀。
大学无机化学考研真题(共13套).doc
大学无机化学考研真题(共13套)北京师范大学 2000 年无机考研题考试科目:无机化学专业:无机化学、分析化学、有机化学、物理化学研究方向:以上各专业所有方向一:选择题(15分) 1、如果体系经过一系列变化,最后又变回初始状态,则体系的 A.Q=0,W=0,△U=0,△H=0; B. Q0,W0,△U=0,△H=Q; C. Q=-W,△U=Q+W,△H=0; D.QW,△U=Q+W,△H=0; 2、某化学反应,其反应物消耗 3/4 时所需时间是它消耗掉 1/2 时所需时间的 2 倍,则该反应的级数为 A、1/2 级 B、1 级C、2 级D、0 级 3、下列物质中,不属于其共轭酸碱的是 A. NH4+,NH3;B. HF,H2F+;C. NH3,NH2-;D. H3O+,OH- 4、下列分子中,偶极矩为零的是 A.NF3; B. NO2;C. PCl3;D. BCl3 5、下列氯化物中,熔点最低的是A. HgCl2;B. FeCl3;C. FeCl2;D. ZnCl2 6、下列分子和离子中,键能最大的是 A. N2;B. O2+;C. NO;D. CN- 7、下列分子和离子中,具有顺磁性的是 A. NO+;B. [Fe(CN)6]4-;C. B2;D.CO 8、分裂能△0 最大的是A.[FeF6]4-;B.[Os(CN)6]4-;C.[Ru(CN)6]4-;D.[Fe(CN)6]4- 9、晶体场稳定化能最大的是 A.[Fe(H2O)6]2+;B.[Fe(H2O)6]3+;C.[Fe(CN)6]3-;D.[Fe(CN)6]4-10、酸性强弱关系正确的是 A. H6TeO6H2SO4;B. H2SO4H3PO4;D.HClOHClO3 11、下列物质中,还原性最强的是 A. HF;B. PH3;C.NH3;D. H2S12、下列硫化物中,可溶于 Na2S 溶液的是 A. HgS;B. CuS;C.SnS;D. Ag2S 13、 [Co(NH3)4(H2O)2]3+可能存在的几何异构体数目是 A、0 B、2 C、4 D、6 14、下列配合物中,磁矩约为 2.8BM 的是 A.K3[CoF6];B. K3[Fe(CN)6];C. Ba[TiF6];D. [V(H2O)6]3+ 15、同物质的量浓度的下列离子在酸性介质中,氧化性最强的是 A. SO42-;B.ClO-;C. ClO4-;D. H3IO62- 二、填空题(16 分) 1、硫酸亚硝酸根五氨合钴(III)的化学式是(1)___________; (NH4)3[CrCl(SCN)4]的学名是(2)____________; 2、自然界中硬度最大的单质是(3)_______________;熔点最高的金属元素是(4) ____________. 3、往 KI和足量 KClO3 组成的混合溶液中逐滴加入稀 H2SO4,可观察到的现象是(5) _____________. 4 、配离子稳定性大小比较: [Cd(NH3)4]2+ (6)_________[Cd(en)2]2+; [HgI4]2- (7)________[HgCl4]2-. 5、根据碰撞理论,反应速率取决于以下 3个因素:(8)_____、(9)______和(10)_______。
考研化学试题2007考研题十卷无机试卷
普化无机试卷(10)班级 姓名 分数一、选择题 ( 共13题 23分 )1. 2 分 (4523) 黄色HgO 低于573 K 加热时可以转化成红色HgO ,这是因为………………………( )(A) 加热改变了结构类型 (B) 加热使晶体出现了缺陷(C) 结构相同,仅仅由于晶粒大小不同 (D) 加热增强了Hg 2+ 对O 2-的极化作用2. 2 分 (1349) 下列化合物与水反应放出 HCl 的是………………………………………………… ( )(A) CCl 4 (B) NCl 3 (C) POCl 3 (D) Cl 2O 73. 2 分 (2098) 在下列物质中,具有顺磁性的有:(1) (NH 4)2Re 2Cl 8; (2) (NH 4)3Tc 2Cl 8; (3) 氧合血红蛋白; (4) 维生素B 12。
4. 2 分 (1515) 在下列反应中:① Cu 2+ + I -−→−② Cu 2+ + CN - −→− ③ Cu 2+ +-24MnO + H 2O −→− ④+22Hg + I - (适量) −→− ⑤+22Hg + NH 3·H 2O −→−金属离子氧化态发生变化的是………………………………………………………………( )(A) ①②③④ (B) ①②③⑤ (C) ①②④⑤ (D) ②③④⑤5. 2 分 (3677) 在下列溶液中,HCN 电离度最大的是………………………………………………( )(A) 0.1 mol ·dm -3 NaCN (B) 0.1 mol ·dm -3 KCl 与0.2 mol ·dm -3 NaCl 混合液(C) 0.2 mol ·dm -3 NaCl (D) 0.1 mol ·dm -3 NaCN 和0.1 mol ·dm -3 KCl 混合液6. 2 分 (3879) 对于一个确定的化学反应来说,下列说法中正确的是………………………………( )(A) mr G ∆越负,反应速率越快 (B) m r H ∆越负,反应速率越快 (C) 活化能越大,反应速率越快 (D) 活化能越小,反应速率越快7. 2 分 (0401) H 2(g) +21O 2(g)H 2O(l) 的Q p 与Q V 之差(kJ ·mol -1)是………………………( )(A) -3.7 (B) 3.7 (C) 1.2 (D) -1.28. 2 分 (0909) 原子轨道角度分布图中,从原点到曲面的距离表示…………………………………( )(A) ψ值的大小 (B) r 值的大小 (C) Y 值的大小 (D) 4πr 2d r 值的大小9. 2 分 (1766) 已知Y 2O 2S : Eu 3+是目前彩色电视中广泛应用的一种稀土荧光粉 ,它显示的颜色是…………………………………………………………………………………………… ( )(A) 绿色 (B) 红色 (C) 黄色 (D) 蓝色10. 2 分 (3936) 关于原子结构的叙述中:①所有原子核均由中子和质子构成;②原子处于基态时,次外层电子不一定是8个;③稀有气体元素,其基态原子最外层有8电子;④最外层电子数为2的原子一定是金属原子。
无机化学考研试题(含答案,已经整理好的)
⽆机化学考研试题(含答案,已经整理好的)⼀、单选题第2章热化学1、在下列反应中,Q p =Q v 的反应为()(A )CaCO 3(s) →CaO(s)+CO 2(g) (B )N 2(g)+3H 2(g) →2NH 3(g)(C )C(s)+O 2(g) →CO 2(g) (D )2H 2(g)+O 2(g) →2H 2O (l )2、下列各反应的(298)值中,恰为化合物标准摩尔⽣成焓的是()(A )2H(g)+ O 2(g)→H 2O (l )(B )2H 2(g)+O 2(g)→2H 2O (l )(C )N 2(g)+3H 2(g)→2NH 3(g) (D )N 2(g) +H 2(g)→NH 3(g)3、由下列数据确定CH 4(g)的为() C(⽯墨)+O 2(g)=CO 2(g) =-393.5kJ·mol -1H 2(g)+ O 2(g)=H 2O (l) =-285.8kJ·mol -1CH 4(g)+2O 2(g)=CO 2(g)+2H 2O (l ) =-890.3kJ·mol -1(A )211 kJ·mol -1;(B )-74.8kJ·mol -1;(C )890.3 kJ·mol -1;(D )缺条件,⽆法算。
4、已知:(1)C(s)+O 2(g)→CO(g), (1)= -110.5k J·mol -1(2)C(s)+O 2(g)→CO 2(g),(2)= -393.5k J·mol -1 则在标准状态下25℃时,1000L 的CO 的发热量是()(A )504 k J·mol -1 (B )383 k J·mol -1 (C )22500 k J·mol -1 (D )1.16×104 k J·mol -15、某系统由A 态沿途径Ⅰ到B 态放热100J ,同时得到50J 的功;当系统由A 态沿途径Ⅱ到B 态做功80J 时,Q 为()(A ) 70J (B ) 30J (C )-30J (D )-70J6、环境对系统作10kJ 的功,⽽系统失去5kJ 的热量给环境,则系统的内能变化为()(A )-15kJ (B ) 5kJ (C )-5kJ (D ) 15kJ7、表⽰CO 2⽣成热的反应是()(A )CO (g )+ 1/2O 2(g )=CO 2(g )ΔrHmθ=-238.0kJ.mol-1(B )C (⾦刚⽯)+ O 2(g )=CO 2(g )ΔrHmθ=-395.4kJ.mol-1(C )2C (⾦刚⽯)+ 2O 2(g )=2CO 2(g )ΔrHmθ=-787.0kJ.mol-1(D )C (⽯墨)+ O 2(g )=CO 2(g )ΔrHmθ=-393.5kJ.mol-1⼆、填空题1、25℃下在恒容量热计中测得:1mol 液态C 6H 6完全燃烧⽣成液态H 2O 和⽓态CO 2时,放热3263.9kJ ,则△U 为-3263.9,若在恒压条件下,1mol 液态C 6H 6完全燃烧时的热效应为-3267.6。
温州大学无机化学2007,2012--2018,2020年考研专业课真题
(C)气体运动速度增大
(D)催化剂有效性增大 第 1 页,共 6 页
6、反应速率的质量作用定律,适用于…………………………………………………( ) (A)一步完成的简单反应 (B)气相反应 (C)液相反应 (D)反应方程中化学计量数为1的反应 7、已知反应3O2(g)→2O3(g)的ΔrHm⊖= 285.4kJ/mol,下列条件中有助于该反应进行的是……………………………………………… …………………………………………( ) (A)高温低压 (B)高温高压 (C)低温低压 (D)低温高压 8、将0.1mol/LHA溶液50mL与0.1mol/LNaOH溶液50mL混合,根据下列假设,判断合理的是 ……………………………………………………………………………………( ) (1) 如果是HA强酸,混合溶液为中性 (2) 如果是HA弱酸,混合溶液为碱性 (3) 如果是HA弱酸,混合溶液为中性 (A)仅(1)正确 (B)仅(2)正确 (C)仅(3)正确 (D)(1)和(2)正确 9、0.01mol/L某酸(HA)溶液的pH值为5,则该酸的解离常数为………………………( ) (A)10-5 (B)10-7 (C)10-8 (D)10-10 10、某原子轨道用波函数表示时,下列表示中正确的是………………………………( ) (A)Ψn (B)Ψn,l (C)Ψn,l,m (D)Ψn,l,m,ms 11、若将基态7N的电子排布式表示成1s22s22px22py1,这种表示法违背了……………( )
2. 定温定压下,已知反应A=B的反应热为△rHm1Θ, 反应A=C的反应热为△rHm2Θ, 则反应B
= C 的反应热△rHm3Θ为:
(A) △rHm1Θ +△rHm2Θ
( B) △rHm1Θ - △rHm2Θ
2007级无机化学期末考试
广东医学院2007级本科《无机化学》期终考试试卷(客观题部分,答在答题卡上)一、选择题(共60分,每小题1.5分,只有一个正确答案)(1)答第一题前,考生务必先将考试科目、专业、年级和姓名用黑色签字笔写在答题卡上,同时一定要把学号用2B铅笔涂写在考号处。
考试结束,将试卷与答题卡一并交回。
(2)每小题选出答案后,用2B铅笔把答题卡上对应题目的答案标号涂黑,如需改动,用橡皮擦干净后,再选涂其它答案标号,不能答在试题卷上。
1.非电解质稀溶液的蒸汽压下降、沸点升高和凝固点降低的数值取决于()A.溶质的本质B.溶液的温度C.溶液的质量摩尔浓度D.溶液的体积2. 在下列水溶液中,溶液凝固点降得最少的是()A. 0.02 mol·L-1KClB. 0.02 mol·L-1 NaOHC. 0.02 mol·L-1 BaCl2D. 0.02 mol·L-1 HAc3. 乙醇的沸点为78.5 ℃.若把34.2g蔗糖(分子量为342)溶于200g乙醇中,则该溶液沸腾时的温度为( ) (已知乙醇的K b=1.20 K.kg.mol-1)A. 79.1℃B. 77.9℃C. 0.60℃D. 78.56℃4.欲较精确地测定某蛋白质的相对分子质量,最适合的测定方法是()A. 凝固点降低B. 沸点升高C. 渗透压力D. 蒸气压下降5.250ml质量浓度为4.2 g·L-1NaHCO3溶液的渗透浓度为()A. 50mmol·L-1B. 100mmol·L-1C. 200mmol·L-1D. 400mmol·L-16.红细胞在下列哪一种溶液中可保持正常状态()A. 310m mol·L-1NaClB. 150m mol·L-1NaClC. 100m mol·L-1NaHCO3D. 0.380 mol·L-1葡萄糖7.某溶液中,NaCl和KNO3的浓度分别为0.1 mol·L-1和0.2 mol·L-1,该溶液的离子强度为()A. 0.1 mol·L-1B. 0.15 mol·L-1C. 0.2 mol·L-1D. 0.3 mol·L-18.HgCl2的K sp = 4×10- 15,则HgCl2饱和溶液中,Cl-离子的浓度是()A 8×10-15B 2×10-15C 1×10-15D 2×10-59.已知次氯酸的K a=2.5×10-8 , 则浓度为0.1 mol·L-1的次氯酸溶液的pH值为()A 3.00B 4.30C 4.60D 9.7010.根据质子理论,下列分子或离子中属于两性物质的是()A H2SB H2PO4-C Ac-D NO3-11.下列化合物中,同浓度水溶液的pH值最高者为()A NaClB Na2CO3(Ka2 = 5.6×10-11)C NH4ClD NH3(K b = 1.80×10-5 )12.人体血浆中最主要的缓冲对中的抗碱成分的共轭碱是()A HCO3-B H2CO3C CO32-D H2PO4-13. 0.10 mol·L-1 NaH2PO4水溶液的pH值约为( )(已知:H3PO4 : p K a 1 = 2.1,p K a 2 = 7.2 ,p K a 3 = 12.7。
2007年中国科学院无机化学考研试题及答案
)
=F
−
(g)
= 2F(g)
= Na (g) + F (D) Na(g) = Na (g) + e
(B) NaF(s)
+ + −
−
(g)
15. 若两个液态组分混合形成理想溶液,则混合过程的…………………………………( (A) ΔV = 0 ΔH = 0 ΔS = 0 ΔG = 0 (B) ΔV > 0 ΔH < 0 ΔS < 0 ΔG > 0 (C) ΔH = 0 ΔV = 0 ΔS > 0 ΔG < 0 (D) ΔH > 0 ΔV < 0 ΔG< 0 ΔS > 0 16. 将下列四种气体按给定量混合均匀, 其中分压最小的是------------------------------( (B) 3.2 g CH4 (C) 2.8 g CO (D) 19.2 g O2 (A) 0.6 g H2 )
4−
5.
)
(B) [Cu(en)2] (D) [Co(CN)6]3−
2+
6. 已知:H3PO4 K1 = 7.1 × 10-3,K2 = 6.0 × 10-10,K3 = 4.4 × 10-13 Na2HPO4 和 Na3PO4 溶解在水中, 其物质的量浓度相同, 这溶液的[H+]应是…………… ( -3 -8 -10 -13 (A) 7.1 × 10 (B) 6.0 × 10 (C) 4.3 × 10 (D) 4.4 × 10 7. s, p, d, f 各轨道的简并轨道数依次为…………………………………………………( (A) 1, 2, 3, 4 (B) 1, 3, 5, 7 (C) 1, 2, 4, 6 (D) 2, 4, 6, 8 试判断下列说法,正确的是……………………………………………………………( 科目名称:无机化学 第 1 页 共6页
广东工业大学(已有10试题)
广东工业大学(2010原版试卷代理5元一份)机电工程学院机械设计2001——2003,2008-2010 微机原理(控制理论与控制工程、检测技术与自动化装置专业)2001 微机原理(自)(控制工程、检测技术、系统工程专业)2002 微机原理(控制工程、检测技术、系统工程专业)2003 微机原理(控制理论与控制工程、检测技术与自动化装置、系统工程、电力系统及其自动化专业)2005 微机原理(机电、机设)(机械电子工程、机械设计及理论专业)2000 微机原理(Z80)(机械电子工程、机械设计及理论专业)2001 微机原理(测试计量技术与仪器、信号与信息处理专业)2005 微机原理及应用(电力电子)(电力电子与电力传动专业)2000 微机原理及应用(电力电子与电力传动专业)2001,2003 微机原理及应用(机电、机设、机制专业)(8086CPU)2002——2003 微机原理与接口(测试计量技术与仪器专业)2002——2003 C语言(通讯与信息系统、信号与信息处理专业)2007 C语言(通信与信息处理、信号与信息处理专业)2008——2009 C语言程序设计(机械制造及其自动化、机械电子工程、机械设计及理论、信号与信息处理专业)2005——2006 C语言程序设计(机)(机制、机械电子工程、机械设计及理论专业)2003 C语言程序设计(机)(机械电子工程、机械设计及理论专业)2002 C语言程序设计(机械电子工程专业)2000——2001 C语言程序设计(计算机应用技术专业)2001 C语言程序设计(计)(计算机应用技术专业)2002 C语言与数据结构(计算机应用技术专业)2000 材料与能源学院大学物理2002——2003 材料力学2001——2003,2005 金属材料及热处理2001——2002 高分子物理2005 信息工程学院C语言(通讯与信息系统、信号与信息处理专业)2007 C语言(通信与信息处理、信号与信息处理专业)2008——2009 C语言程序设计(机械制造及其自动化、机械电子工程、机械设计及理论、信号与信息处理专业)2005——2006 C语言程序设计(机)(机制、机械电子工程、机械设计及理论专业)2003 C语言程序设计(机)(机械电子工程、机械设计及理论专业)2002 C语言程序设计(机械电子工程专业)2000——2001 C语言程序设计(计算机应用技术专业)2001 C语言程序设计(计)(计算机应用技术专业)2002 C语言与数据结构(计算机应用技术专业)2000 微机原理(控制理论与控制工程、检测技术与自动化装置专业)2001 微机原理(自)(控制工程、检测技术、系统工程专业)2002 微机原理(控制工程、检测技术、系统工程专业)2003 微机原理(控制理论与控制工程、检测技术与自动化装置、系统工程、电力系统及其自动化专业)2005 微机原理(机电、机设)(机械电子工程、机械设计及理论专业)2000 微机原理(Z80)(机械电子工程、机械设计及理论专业)2001 微机原理(测试计量技术与仪器、信号与信息处理专业)2005 微机原理及应用(电力电子)(电力电子与电力传动专业)2000 微机原理及应用(电力电子与电力传动专业)2001,2003 微机原理及应用(机电、机设、机制专业)(8086CPU)2002——2003 微机原理与接口(测试计量技术与仪器专业)2002——2003 机械设计基础2002——2003 控制理论基础2002——2003 数字电子技术2003 自动化学院电路理论2007——2009 页)电路2005——2006(注:2005年试卷共7页,缺第3-7页)微机原理(控制理论与控制工程、检测技术与自动化装置专业)2001 微机原理(自)(控制工程、检测技术、系统工程专业)2002 微机原理(控制工程、检测技术、系统工程专业)2003 微机原理(控制理论与控制工程、检测技术与自动化装置、系统工程、电力系统及其自动化专业)2005 微机原理(机电、机设)(机械电子工程、机械设计及理论专业)2000 微机原理(Z80)(机械电子工程、机械设计及理论专业)2001 微机原理(测试计量技术与仪器、信号与信息处理专业)2005 微机原理及应用(电力电子)(电力电子与电力传动专业)2000 微机原理及应用(电力电子与电力传动专业)2001,2003 微机原理及应用(机电、机设、机制专业)(8086CPU)2002——2003 微机原理与接口(测试计量技术与仪器专业)2002——2003 电子技术2000——2003,2005——2006,2008 数字电子技术2003 自控原理2001——2003,2008——2009 数据库2000——2003 计算机学院数据结构1997——1999,2002——2006 计算机组成原理1998——2003 C语言(通讯与信息系统、信号与信息处理专业)2007 C语言(通信与信息处理、信号与信息处理专业)2008——2009 C语言程序设计(机械制造及其自动化、机械电子工程、机械设计及理论、信号与信息处理专业)2005——2006 C语言程序设计(机)(机制、机械电子工程、机械设计及理论专业)2003 C语言程序设计(机)(机械电子工程、机械设计及理论专业)2002 C语言程序设计(机械电子工程专业)2000——2001 C语言程序设计(计算机应用技术专业)2001 C语言程序设计(计)(计算机应用技术专业)2002 C语言与数据结构(计算机应用技术专业)2000 轻工化工学院化工原理2000——2002 有机化学2000——2003,2008 无机化学2002,2005 页)(注: 2005年共5页,缺第3、4页)物理化学2000——2003,2005——2006(注:环境科学与工程学院有机化学2000——2003,2008 页)(注: 2005年共5页,缺第3、4页)物理化学2000——2003,2005——2006(注:水污染控制工程2000——2003 环境化学2005 经济管理学院管理学2002——2003 数据库2000——2003 运筹学2000——2003 经济学2000——2003 建设学院结构力学2002——2003 材料力学2001——2003,2005 土力学2002——2003 测量学2005 物理与光电工程学院普通化学2002——2003 大学物理2002——2003 电子技术2000——2003,2005——2006,2008 应用数学学院艺术学院数学分析2000——2003 艺术学院艺术设计基础理论2009 。
2014年硕士研究生入学考试初试专业课833无机化学试题
北京科技大学2014年硕士学位研究生入学考试试题================================================================================= ============================试题编号:833 试题名称:无机化学(共 5 页)适用专业:化学、化学工程与技术、化学工程(专业学位)说明:所有答案必须写在答题纸上,做在试题或草稿纸上无效。
================================================================================= ============================一、是非题(判断下列叙述是否正确,正确的在括号中画√,错误的画×)(本大题分8小题, 每小题1.5分, 共12分)1、NaHS 水溶液显酸性。
.................................................................................()2、实验室使用的铬酸洗液是用重铬酸钾和浓硫酸配制而成的。
..................………………………………………………………………………..()3、由于生成配离子,Ag (Ⅰ) 的氧化性增强。
........................... ()4、f区元素原子主要在(n - 2)f亚层中电子数目不同,外层及次外层则相差不多,所以同一周期的f区元素之间表现出相似的化学性质。
...............................................................()5、磁矩大的配合物,其稳定性强。
...................................................()6、碱土金属氯化物的熔点高低次序为:BeCl2 < MgCl2 < CaCl2 < SrCl2 < BaCl2。
考研化学试题2007考研题十三卷无机答案
普化无机试卷 答案(13)一、选择题 ( 共27题 50分 )1. (4004) (B)2. (3929) 3, 0, 0, 21或 3, 0, 0, -21 3. (7112) (B) 4. (1740) (B) 5. (0380) (D) 6.(2098)(2) 7. (7058) (D) 8. (0962) (C) 9. (6744) (A) 10. (4672) (B) 11. (7107) (D) 12. (1713) (C) 13. (0378) (C)14. (3413) (B) 15. (7694) (D) 16. (3879) (D) 17. (6552) (B) 18. (0412) (C) 19. (1230) (C) 20. (0410) (C)21. (1343) (D) 22. (0419) (D) 23. (0432) (D) 24. (4565) (D) 25. (4159) (D) 26. (1739) (C) 27. (0386) (B)二、填空题 ( 共 9题 30分 )28. (4667) Ni 2+, VIII , s 1p 3 d s p 2, 四面体形 平面正方形。
29. (0265) (1) 气态; (2) 气固共存; (3) 固态; (4) 固液共存; (5) 液态。
30. (2080) 6;σ;4s 、4p x 、4p y 、4p z 、3d z 2、3d x y 22-; 3;3d xy 、3d xz 、3d yz ;σ ;π31. (6757) 1,2.2 ⨯ 10-20,-0.2 32. (1818) (1) 没有S n 对称元素;(2) SiFClBrI 。
33. (7443) 3PO 43-+ 6H +−→−P O 393- + 3H 2O 2[Fe(OH 2)6]3+NH 4+[(H 2O)4Fe(μ-OH)2Fe(OH 2)4]4+ + 2H 3O + 34. (2319) 密度法。
考研化学试题2007考研题二卷无机答案
普化无机试卷 答案(2)一、选择题 ( 共 8题 14分 )1. (3514) (B)2. (0802) (C) v =-=1213d O d d O d 32()()t t = k 0 (O 3)2 (O 2)-1 -d O d 3()t = 2k 0 (O 3)2 (O 2)-1 = k (O 3)2 (O 2)-1 +d O d 2()t= 3k 0 (O 3)2 (O 2)-1 = k ' (O 3)2 (O 2)-1 所以 k 0 = k /2 = k '/3 或 3k = 2k '3. (0962) (C)4. (3876) (D)5. (3824) (A)6. (3820) (C)7. (0568) (B)8. (3923) (D)二、填空题 ( 共19题 45分 )9. (4685) 1. ϕ(+2VO /V 2+ ) =31)25.0(1)36.0(1)00.1(⨯-+⨯++⨯+ = 0.37 (V) 2. Zn , Sn 3. 不稳定 10. (3323) (1) 0.0831 (2) 2.07 (3) 166 (4) 27.7 (5) 4.6 cm 311. (6756) (C),(B),(B),(A) = (C) 12. (2213) (2),(3),(6)13. (2227) 丁硼烷(10)、戊硼烷(9)、1,2-二碳代-十二硼烷(12) 14. (1809) “交错式”构象15. (2322) p ,n 16. (3528) 0.1417. (3800) 1.518. (2119) 其中存在有C ← O 配位键 19. (3924) (n -1)d 1 ~ 9 ns 1 ~ 2 2 0. (2218) (D)21. (1815) D 3h ,T d 22. (2311) n ,p 23. (2226) B 6H 10巢式硼烷24. (1822) (1) 中心原子的孤对电子的数目将影响键角,孤对电子越多、键角越小。
无机试卷(A)1
广东工业大学试卷用纸,共4页,第4页广东工业大学试卷用纸,共4页,第4页广东工业大学试卷用纸,共4页,第4页六、计算题(共20分)1.(5分)计算1L0.10mol·L-1的HAc溶液中加入0.05mol的NaAc晶体后(忽略体积变化),溶液的pH值为多少?(KØa(HAc)= 1.75×10-5)2. (6分)将Pb(NO3)2溶液与NaI溶液混合。
设混合液中Pb(NO3)2的浓度为0.050mol•L-1,计算在25℃时:(1) 当混合溶液中I-浓度多大时,开始生成沉淀?(2) 求PbI2在0.050mol•L-1的Pb(NO3)2溶液中的溶解度。
(已知KØsp(PbI2)=8.49×10-9)3.(9分)已知电池反应为:Sn4+ (0.10 mol·L-1) + Cd ═ Sn2+(0.0010 mol·L-1) + Cd2+(0.10 mol·L-1)Eθ(Cd2+/Cd) = -0.403V, Eθ(Sn4+/Sn2+) = 0.154V, 反应温度为298.15K。
(1)计算原电池的电动势E,并判断反应进行的方向。
(2)写出该反应组成的原电池符号,并写出两极反应式。
(3) 计算反应的吉布斯自由能变Δr Gθm(F=96500 C·mol-1)及反应的平衡常数Kθ。
广东工业大学试卷用纸,共4页,第4页广东工业大学试卷用纸,共4页,第4页广东工业大学试卷参考答案及评分标准 ( A )课程名称: 无机化学 。
考试时间: 2008 年 1 月 16 日 (第 20 周 星期 三 )一、是非题:(每小题1分,共15分)1.( × ) 2. ( × ) 3. ( × ) 4.( √ ) 5.( √ ) 6.( √ ) 7. ( × ) 8. ( × ) 9.( √ ) 10.( × ) 11.( ×) 12. ( × ) 13. ( × ) 14.(√ ) 15.( √ )评分标准:每错1小题扣1分 二、选择题:(每小题1分,共15分)1.(A ) 2. ( A ) 3. ( C ) 4.( B ) 5.( C ) 6.(B ) 7. ( B ) 8. ( B ) 9.( C ) 10.( A ) 11.(A ) 12. (A ) 13. ( B ) 14.( C ) 15.( C )评分标准:每错1小题扣1分三、填空题:(每空1分,共30分) 1. ﹤0 ; ﹥0 ; = 0 2. b a B C A C k v )]([)]([=3. 4 ; B-H-B 桥键(或氢桥键\3c-2e\π23);4. Fe 3+ ; 6 ; 六氰(基)合铁(III)酸钾5. 1s 22s 22p 63s 23p 63d 54s 2(或[Ar] 3d 54s 2) ; 四 ; VIIB ; d ; 1s 22s 22p 63s 23p 63d 5(或[Ar] 3d 5)6. 离子的半径 ; 离子的电荷 ; 离子的电子构型7. 钨(或W ) ; 铬(或Cr )8. (σ1s)2 (σ*1s)2(σ2s)2 (σ*2s)2(σ2p x )2 (π2p y )2(π2p z )2 (π*2p y )1(π*2p z )1或者KK(σ2s)2 (σ*2s)2(σ2p x )2广东工业大学试卷用纸,共4页,第4页(π2p y )2(π2p z )2 (π*2p y )1(π*2p z )1 ; 顺9. 臭氧(或氧气、或O 2、或O 3); 过氧化氢(或双氧水、或H 2O 2) 10. Ni 2O 3 > Co 2O 3 > Fe 2O 3 ; FeO > CoO > NiO11.[Ag(NH 3)2]+(或银氨配离子、或银氨配合物) ; 氧化性 ; 银镜 12. 大 ; 同离子效应 ;评分标准:每空1分;本大题各小题其它正确答案酌情给分四、简答题(每小题5分,共10分)1、实验测得下列两个配合物的磁矩数据如下:a 、[FeF 6]3-磁矩μ=5.9 B.M ; b 、[Mn(CN)6]4-磁矩μ=1.8 B.M ;根据配合物价键理论说明它们中心离子的电荷分布,轨道杂化形式及配合物的空间构型。