Answer :
Answer: B. The electrode at which a reduction reaction occurs.
Explanation: I just took the quiz (A P E X)
Cathode is the electrode at which a reduction reaction occurs.
What is Cathode ?
Cathode is the electrode which occurs at reduction and current enters the cell. Cathode attracts cations. Cathode means negative side.
Now check options one by one
Option (A): The electrode not releasers ions into the solutions because here positive ions gains electrons not lose electrons.
So option (A) is incorrect.
Option (B): The electrode at which a reduction reaction occur and current enter in the cell.
So it is correct answer.
Option (C): The electrode that is oxidized in a redox reaction is anode not cathode.
So it is incorrect answer.
Option (D): Anode is the electrode which loses the electrons.
So, option (D) is incorrect.
Thus, we can say that Cathode is the electrode at which a reduction reaction occurs.
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