Author Question: A major source of chlorine gas, ci2, is from the electrolysis of brine, which is concentrated salt ... (Read 52 times)

DyllonKazuo · **on:** Jul 29, 2018

A major source of chlorine gas, ci2, is from the electrolysis of brine, which is concentrated salt water, NaCI(aq). What is the sign of the electrode where the chlorine gas is formed? Is it negative or positive?

A) Positive, since the chloride ions lose electrons to form chlorine molecules.
B) Negative, since the chlorine gas needs to deposit electrons to form chloride ions.
C) Neither, since chlorine gas is a neutral molecule, there is not electrode attraction.
D) Both, since the chloride ions from NaCl (aq) are attracted to the positive electrode to form chlorine molecules while the produced chlorine gas molecules move to deposit electrons at the negative electrode.

Question 2

What is the oxidant?

In one type of fuel cell, the following oxidation-reduction reactions are taking place:

2 H2 + O2 2 H2O

A) H2
B) O2
C) H2O
D) all of the above
E) none of the above