STANDARD Chemistry Electrolysis MCQ Question
How many moles of Pt may be deposited on the cathode when 0.80 F of electricity is passed through a 1.0 M solution of Pt⁴⁺?
0.1 mol
0.2 mol
0.4 mol
0.6 mol
Correct Answer
Detailed Explanation
For Pt⁴⁺, 4 moles of electrons are required to deposit 1 mole of Pt. Therefore, 0.80 F will deposit 0.80/4 = 0.20 mol of Pt.
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