最新人教版选修四第四章《电化学基础》测试题.pdf

人教版选修四第四章电化学基础测试题（People teach edition elective four, fourth chapter electrochemistry foundation test question）People teach edition elective four, fourth chapter electrochemistry foundation test question Guangzhou No. 2010.3 Chemistry Center offers This test paper is divided into the first part (the multiple-choice question) and the second part (the non selective question), the full score 100 points, the examination time 40 minutes. The first part is the multiple-choice question (50 points altogether) A single choice (5 minutes every day, every day with only one option, a total of 30 points.) 1. waste battery pollution caused widespread attention, the waste battery in the environment pollution is the main material A. zinc, B., mercury, C. graphite, D. manganese dioxide 2. insert the pure zinc sheet and the pure copper sheet into the dilute sulfuric acid for the same time according to the diagram. The following statement is correct A. two beaker has no bubbles on the surface of the copper sheet 精品 p d f 资料 欢迎下载 - - - - - - - - - - - - - - - 学习资料 精品 - - - - - - -第 1 页，共 12 页 - - - - - - - - - -B. a copper plate is an anode, and a copper plate in the second is a negative electrode In C. two beaker, the pH of the solution increases The rate at which D. produces bubbles is slower than that of B. 3. the reaction of galvanic cells in the following changes is A. darkened the surface of silver medals in the air B. when galvanized iron is scratched on the surface, it can also prevent iron from being oxidized C. hot wire in contact with cold water, black protective layer formed on the surface D. concentrated nitric acid is more likely to oxidize metal copper than dilute nitric acid 4. the three electrolytic cells which are respectively molten sodium chloride, magnesium chloride and alumina are connected in series, and after a certain period of time, the ratio of the amount of sodium, magnesium and aluminum is released under certain conditions A.1: 2, 3, B.3: 2, 1, C.6, 2, 3, 1, D.6: 3 5., about lead-acid batteries Pb + PbO2 + 2H2SO4, PbSO4 + 2H2O is correct, yes 精品 p d f 资料 欢迎下载 - - - - - - - - - - - - - - - 学习资料 精品 - - - - - - -第 2 页，共 12 页 - - - - - - - - - -In A. discharge, the positive reaction is Pb (s) +SO42- (AQ) = PbSO4 (s) +2e- B. in the discharge when the battery is in lead anode materials When C. charges, the concentration of sulfuric acid in the battery is getting smaller When charging D., the anodic reaction is PbSO4 (s) +2e-=, Pb (s) + SO42- (AQ) The 6. one consists of X, Y, Z alloy, W four metal components, if only the Z alloy in hydrochloric acid, Y can be dissolved; if the alloy in the humid air, the surface appears only Z compounds; if the alloy as anode, X salt solution as the electrolyte, electricity four the metal ions form in the solution, but only precipitated on the cathode X. The order of activity of the four metals is. A.Y Z W X Y W X B.Z C.W Z Y X Y Z W D.X Two, double choice (5 minutes every day, every day there are two options to do wrong, 0 points, missed 2 points, a total of 20 points.) In an electrolyte solution of 7.pH = a, two inert electrodes are inserted into the electrolyte for a period of time after direct current, and the solution is pH A, then the electrolyte 精品 p d f 资料 欢迎下载 - - - - - - - - - - - - - - - 学习资料 精品 - - - - - - -第 3 页，共 12 页 - - - - - - - - - -may be A.NaOH B.Na2SO4 C.AgNO3 D.HCl 8. the following description does not conform to the actual production A. electrolytic molten alumina is used to make aluminum, and iron is used as anode Refining crude copper by B. electrolysis and using coarse copper as cathode C. caustic soda was prepared by electrolysis of saturated salt water, and nickel coated carbon steel mesh was used as cathode D. galvanized on plated parts, with zinc as anode 9., the chemical term is an important tool in studying chemistry A. electrolysis saturated salt water, anode electrode reaction: 2Cl - 2E = Cl2 = The negative reaction of B. type alkaline hydrogen fuel cell: O2 + 2H2O + 4e- = 4OH When C. plated copper, anode reaction: Cu2+, 2e-, =Cu The negative reaction of D. steel electrochemical corrosion: Fe2e= Fe2+ 精品 p d f 资料 欢迎下载 - - - - - - - - - - - - - - - 学习资料 精品 - - - - - - -第 4 页，共 12 页 - - - - - - - - - -10. when the electrolyte solution is an oxyhydrogen fuel cell, the electrolyte solution is saturated with sodium carbonate solution for a period of time, assuming that the temperature is constant at the time of electrolysis and the inert electrode is used A. when the negative electrode of the battery consumes mg gas, the anode of the electrolytic cell is simultaneously generated with Mg gas The positive reaction of B. battery is O2 + 2H2O + 4e- = 4OH- After C. electrolysis, C (Na2CO3) remains unchanged, and crystal precipitation occurs in the solution In D. batteries, C (KOH) remains constant; solution pH becomes larger in the electrolytic cell The second part is the non choice question (50 points altogether) Three, non choice questions (50 poi。