This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: Version 190 Quiz 5 laude (51635) 1 This print-out should have 8 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. 001 5.0 points Consider a voltaic cell based on the redox reaction Zn + Cl 2 ZnCl 2 . The half cell reaction occuring at the anode is 1. Cl 2 + 2 e 2 Cl 2. Zn 2+ + 2 Cl ZnCl 2 3. None of these 4. Zn Zn 2+ + 2 e correct Explanation: Oxidation (loss or production of e ) always occurs at the anode. 002 5.0 points In an electrolytic cell, the negative terminal is the (cathode/anode) and is the site of the (oxidation/reduction) half reaction. 1. cathode, oxidation 2. anode, oxidation 3. cathode, reduction correct 4. anode, reduction Explanation: In an electrolytic cell (analogous to charg- ing a battery) the cathode is always attributed a negative sign. By definition, the cathode is the site of reduction, regardless of the type of electrochemical cell and whether it is charging or discharging. 003 5.0 points Consider the half reactions below: Br 2 + 2 e - 2 Br Fe 3+ + 3 e - Fe Co 3+ + e - Co 2+ Zn...
View Full Document