《金属单质及其化合物》单元测试（Unit test of metallic elements and their compounds）.doc

《金属单质及其化合物》单元测试（Unit test of metallic elements and their compounds） Unit test of metallic elements and their compounds Ge Xiumei, Yanzhou second middle school, Shandong, China Class number, name, grade Relative atomic mass: Na-23, Mg-24, Al-27, Fe-56, Cu-64, H-1, O-16 A choice: (2 points per day, a total of 50 points, every day there is only one right answer) 1. sodium chloride, aluminium chloride, ferrous chloride, ferric chloride and magnesium chloride can be distinguished by one step experiment, and only one kind of reagent is used. The reagent is five kinds of reagents A, KSCN, B, BaCl2, C, NaOH, D, HCl 2. from the history of the utilization of metal, the bronze age and the iron age were the first. The utilization of aluminum was almost a hundred years. This order is in relation to the following: (1) the content of metal elements in the earth crust; the activity of metals; the conductivity of metals; the degree of difficulty in metal smelting; and the ductility of metals; A., B., C., D., II 3. what is wrong with the following statements about Na and Na+? A. have the same proton number B., and their chemical properties are similar C. sodium ion is the product of oxidation of sodium atoms. When D. burns, the flame is yellow 4., the iron powder into hydrochloric acid, MgCl2 solution, FeCl3 solution, CuCl2 solution composed of mixed liquid, after sufficient reaction, iron powder remaining, then the solution contains a lot of cation is A.Cu2+ and Fe2+, B.H+ and Cu2+, C.Fe3+ and Fe2+, D.Fe2+, and Mg2+ 5., in order to prevent FeSO4 from being oxidized, a small amount of the solution is often added to the solution when preparing the FeSO4 solution A. copper powder, B. iron powder, C. zinc powder, D.Fe2 (SO4) 3 6. the ion equation of the following reactions is written correctly A. sodium and cold water response: Na2H2O = Na+2OH + H2 =? B. metal is soluble in sodium hydroxide solution: Al2OH + H2 = AlO2??? C. iron with dilute sulfuric acid reaction: 2Fe6H+ = 2Fe3+3H2? D.F