电解与原电池（Electrolysis and galvanic cells）.docVIP

电解与原电池（Electrolysis and galvanic cells） Three chemical unit exercises: primary cell and electrolytic cell (Ⅱ) Relative atomic mass that might be used: O, 16; H, 1; S, 32; Na, 23; Cl, 35.5; Cu, 64; Ⅰ (choice a total of 72 points) 1. Choose the topic (one correct answer for each question, 4 points for each question, 32 points) The following processes need to be electrified to do so: ionization; (2) the electrolysis; (3) plating; (4) electrophoresis; The electrochemical corrosion; A, (1) (2) (3); B, (2) (3) (4); C, (2) (4) (5); D, all; 2. Under normal temperature, the PH of 0.1 mol/L acid solution is: A, 1; B, 1; C, 1; D, uncertain; 3, 1 liter contains NaOH under normal temperature of saturated salt water, the PH = 10, with platinum electrodes during electrolysis, when the cathode has a 11.2 liter gases (standard conditions), the PH of the solution is close to (set after electrolytic solution volume is still 1 liter) : A., 0; B, 12; C, 13; D, 14; 4. The basic structure of the newly developed bromo-zinc battery in foreign countries is to use carbon rods as the poles, and electrolytes are zinc bromide solutions. There are four electrode reactions: (1) Zn = Zn = Zn = Zn = Zn = Zn = Zn = Zn = Zn = Zn = Zn = Zn = Zn = Zn = Zn = Zn = Zn = Zn = Zn = Zn = Zn = Zn = Zn = Zn = Zn = Zn = Zn = Zn = Zn + 2e The negative reaction of the anode reaction and discharge when charging is respectively: A, (4) (1); B, (2) (3); C, (3) (1); D, (2) (4); 5. The colby reaction is 2RCOOK + 2H2O r-r + H2 + 2KOH, and the following statement is correct () A. Products containing hydrogen are produced in the anode area; B. Products containing hydrogen are produced in the cathode region; C. Products containing carbon are produced in the anode area; D. Products containing carbon are produced in the cathode region; 6. Use 0.01 mo/litre H2SO4 titration 0.01 mo/l NaOH solution, neutralize and add water to 100ml. If there is an error at the end of the line, the ratio of 1 drop of H2SO4 to 1 drop of H2SO4