Which Statement About Electrolysis is True?

[itsonlyme90]

hey ya..i am new here..erm..setting up this thread to seek help from the pros here..erm..do feel free to post ur ans..

to start off..here is my first qn..
Which of the following is true regarding electrolysis?
A.electrons flow from the cathode to the anode through the external circuit.
B.electricity is conducted through the electrolyte through electrolysis.
C. the ease of discharge of metallic cation is inversely proportional to the reactivity of metal.
D.the amount of substance produced during electrolysis is directly proportional to the amount of electric current and the charge on the ion.

 

[Borek]

Surely you know something? Show us what.

 

[Blueshift5]

Hi there! Welcome to the forum. I'd be happy to answer your question about electrolysis.

The correct answer is D. During electrolysis, an electric current is passed through an electrolyte, causing a chemical reaction to occur. The amount of substance produced during electrolysis is directly proportional to the amount of electric current and the charge on the ion. This is known as Faraday's Law, which states that the amount of substance produced is directly proportional to the number of moles of electrons transferred (which is determined by the electric current) and the charge on the ion.

Answer A is incorrect because in electrolysis, the electrons actually flow from the anode to the cathode, not the other way around. This is because the anode is positively charged and attracts the negatively charged electrons.

Answer B is also incorrect because the electricity is not conducted through the electrolyte itself, but rather through the external circuit that connects the anode and cathode.

Answer C is partly correct, but it is not the whole truth. The ease of discharge of a metallic cation is influenced by both the reactivity of the metal and the concentration of the ion in the electrolyte. However, this is not directly related to the amount of substance produced during electrolysis.

I hope this helps answer your question. Feel free to ask any further questions you may have. Happy experimenting!