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Topic Topic: The half-reaction at the cathode Post ReplyNew Question
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Joined: 26 June 2005
Posts: 918
Posted: 28 November 2005 at 4:59pm | IP Logged Quote System

Electrolysis of an aqueous potassium bromide solution is conducted using carbon electrodes. Which equation shows the half-reaction at the cathode?
    A.   2Br_   Br2 + 2e_
    B.   2H+ +  2e_   H2
    C.   K+ +  e_   K
    D.   4OH_   O2 + 2H2O + 4e_
 QUIZ QUESTION #2000 created by Guest on 28 November 2005 at 1:00am

Correct answer: B    Correct clicks: 44.70%  Wrong clicks: 55.30%
    A.   [151 clicks 25.00%] 
    B.   [270 clicks 44.70%] 
    C.   [108 clicks 17.88%] 
    D.   [75 clicks 12.42%] 
Please discuss this quiz question.
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