NEET 2013 Chemistry Faraday's Laws MCQ Question
How many grams of cobalt metal will be deposited when a solution of cobalt (II) chloride is electrolyzed with a current of 10 amperes for 109 minutes (1 Faraday = 96,500 C, Atomic mass of Co = 59 u):
4.0
20.0
40.0
0.66
Correct Answer
Detailed Explanation
Using Faraday's laws of electrolysis, the mass of cobalt deposited can be calculated. The charge passed is current multiplied by time, and the mass is determined using the equivalent weight of cobalt.
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