AP Chemistryhardmcq1 pt
In an electrolytic cell, what are the signs of the anode and cathode?
A.Anode +, cathode −
B.Anode −, cathode +
C.Both positive
D.Both neutral
Explanation
Core Concept
The external power supply forces the anode positive and cathode negative in electrolysis — opposite to the galvanic assignment.
Correct Answer
AAnode +, cathode −
More Unit 9: Applications of Thermodynamics practice questions
- easyWhat is the function of the anode in electrorefining copper?
- easyWhich change increases the entropy of a system?
- hardUsing E°: Fe²⁺/Fe = −0.44 V and Fe³⁺/Fe²⁺ = +0.77 V, which statement is correct?
- hardWhich reaction represents the cathode half-reaction in the hydrogen fuel cell?
- hardA 3.00 A current passes through AgNO₃ solution for 1930 s. What mass of silver deposits? (Ag = 107.9 g/mol)
Practice more AP Chemistry questions with full explanations
Practice Unit 9: Applications of Thermodynamics Questions →