Answer:
The cathode of a spontaneous electrochemical cell is the cell in which metal cations undergo reduction. The electrons are supplied by the anode. Without much thought, we can conclude magnesium is much less favorably reduced than gold.
The branch of science which deals with chemicals is called chemistry.
The correct option to the question is B.
The system in which the compound is breakdown into its ionic components is called a galvanic cell. In this cell there are two rods, These rodes are as follows:-
In the given question, the cathode is the rode in which electrons enter into the galvanic cell. The cathode is defined as the negatively charged rode.
Hence, the correct option is B that is gold ions.
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