electrochemistry exam questions answers

Also, this page requires javascript. Redox reaction from dissolving zinc in copper sulfate, Shorthand notation for galvanic/voltaic cells, Standard cell potential and the equilibrium constant, Calculating the equilibrium constant from the standard cell potential edited, Electrolysis of molten sodium chloride edited. Which solution will show highest resistance during the passage of current? (a) Fe, -0.44 V (b) Au, 1.94 V (c) Fe, 1.06 V Show all questions <= => The oxidation number on nitrogen in a nitrate ion is: ? These important questions will play significant role in clearing the concepts of Chemistry. Which of the following will not conduct electricity in aqueous solution? ANS:C 4. If loading fails, click here to try again, The standard EMF for the given cell reaction Zn + Cu. Electrochemistry Review Questions. Practice Problems Electrochemistry. Our mission is to provide a free, world-class education to anyone, anywhere. ANS: D 14. These are actual Provincial Exam questions! How many Faradays are required to generate one gram atom of magnesium from MgCl. +5; The sum of the oxidation numbers on all of the atoms in the formula of an acetate ion is equal to: ? Important Questions and Answers: Electrochemistry | Lets ... Notes › Class 12 › Chemistry › Important Questions and … THE. Please visit using a browser with javascript enabled. Save my name, email, and website in this browser for the next time I comment. What is the difference between an oxidation-reduction reaction and a half-reaction? Donate or volunteer today! -1 ? ANS:D The balanced equation is: + 6 + 6 + 6 + 3 8. 2. ANS: D 19. On passing 0.5 faraday of electricity through NaCl, the amount of Cl deposited on cathode is. If you're seeing this message, it means we're having trouble loading external resources on our website. ANS:C 3. If you leave this page, your progress will be lost. Which of the following shows electrical conduction? Get Electrochemistry important questions with answers for Class 12 and other exams. URGE RESIST THE. Khan Academy is a 501(c)(3) nonprofit organization. ANS: D 18. Home » Engineering Entrance Sample Papers » Electrochemistry Multiple Choice Questions Answers, Related: OJEE B.Pharm Biology Question Bank, Related: PES Scholastic Aptitude Test Chemistry, Eo for Zn / Zn2+ (1M) = –0.76 V & Cu2+ / Cu = + 0.34 V, Related:Wave Optics Question Bank for JEE Main (Physics). ANS: E 17. Question and answer on electrochemistry.pdf - Free download as PDF File (.pdf), Text File (.txt) or read online for free. Practice: Electrochemistry questions. Electrochemistry Practice Test with Answers. You have not finished your quiz. 3. If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked. Electrochemistry. So the standard electrode potential of aluminium is, What is the standard cell potential for the cell, The number of coulombs required for the deposition of 107.870, Amount of electricity that can deposit 108, The amount of silver deposited by passing 241.25 coulomb of current through silver nitrate solution is, In the electrolytic cell, flow of electrons is from, Beryllium is placed above magnesium in the second group. Electrochemistry-Ch.9 Answer Section MULTIPLE CHOICE 1. -2 ? On passing 0.5 faraday of electricity through NaCl, the amount of Cl deposited on cathode is, Chemical energy is converted to light energy, Normal aluminium electrode coupled with normal hydrogen electrode gives an emf of 1.66 volts. ANS: C 20. Electrochemistry. Question 1. ANS: D 12. What is the function of the salt bridge in an electrochemical cell? To log in and use all the features of Khan Academy, please enable JavaScript in your browser. Redox reaction from dissolving zinc in copper sulfate. Beryllium dust, therefore when added to MgCl, The conductivity of strong electrolyte is, Depend upon density of electrolytes itself, Which of the following liberate hydrogen on reaction with dilute H, During the electrolysis of an electrolyte, the number of ions produced, is directly proportional to the, Electro chemical equivalent of electrolysis, The amount of ion discharged during electrolysis is not directly proportional to, A solution of a salt of a metal was electrolysed for 150. -3 ? ANS:A 7. THE “OFFICIAL” CHEMISTRY 12 REDOX &ELECTROCHEMISTRY STUDY GUIDE SAHOTA 03 Electrochemistry Study Guide - Multiple Choice - Page 1 of 22 1. Introduction to galvanic/voltaic cells. 1.4 Mg(s) | Mg2+(1 mol∙dm-3) || H+(1 mol∙dm-3) | H2(g) | Pt(s) 1.5 Eθcell = Eθcathode - Eθanode QUESTIONS in this booklet. DO ALL. +3 ? If this activity does not load, try refreshing your browser. ANS:B 9. 6. This is the currently selected item. ANS: D 2. 2. What is the criterion for spontaneous chemical change based on cell potentials? ANS:A 10. the answer. 1. Please wait while the activity loads. ANS: C 13. When the sample of copper with zinc impurity is to be purified by electrolysis, the appropriate electrodes are Related: … Test prep MCAT Physical processes Electrochemistry. Your own provincial exam and unit test will include questions similar to the ones in this booklet! ANS:B 5. -5 ? Electrodes and voltage of Galvanic cell. Electrochemistry Multiple Choice Questions Answers, Wave Optics Question Bank for JEE Main (Physics), COMEDK UGET Entrance exam Physics sample paper, Communication System class 12 important questions, VIT Entrance Exam Physics Sample Questions, PESSAT Entrance Test Chemistry Question Bank, Hydrogen and its Compounds Important Questions, Complex Numbers Practice Test (Mathematics), Alkaline earth metals Question Bank for JEE Mains, AIIMS Nursing Entrance Biology Practice MCQs, Transition Metals Compounds Important Questions. Cathode - Anode. (2) SOLUTIONS TO ELECTROCHEMISTRY Question 1 1.1 Pressure: 101,3 kPa (1,013 x 105 Pa) Temperature: 25 °C (298 K) 1.2 Salt Bridge 1.3 Anode , Mg is a stronger reducing agent than H2 and therefore (Mg) will be oxidised. Electrochemistry Examples of Multiple Choice Questions: 1. Choose the correct answer for each question. View the Important Question bank for Class 11 & 12 Chemistry syllabus. 4. Explain. ANS: C 15. Which answer identifies the cathode and gives the E o for the cell? ANS: A 16. ANS:B oxidation number of in has changed from +3 to +4. ANS: C The balanced equation is 11.

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