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Discuss each conclusion from a study of redox
Chapter 4, Problem 60P(choose chapter or problem)
Discuss each conclusion from a study of redox reactions:
(a) The sulfide ion functions only as a reducing agent.
(b) The sulfate ion functions only as an oxidizing agent.
(c) Sulfur dioxide functions as an oxidizing or a reducing agent.
Questions & Answers
QUESTION: Problem 60P
Discuss each conclusion from a study of redox reactions:
(a) The sulfide ion functions only as a reducing agent.
(b) The sulfate ion functions only as an oxidizing agent.
(c) Sulfur dioxide functions as an oxidizing or a reducing agent.
ANSWER:
Solution 60P
Here we have to discuss each conclusion from a study of redox reactions:
Reducing agent:- Loss of electron is known as oxidation reaction and the atom or compound which losses electron is called as reducing agent.
Oxidizing agent:- Gain of electron is known as reduction reaction and the atom or compound which gain electron is called as oxidizing agent.
Step 1
(a) The sulfide ion functions only as a reducing agent.
S atom is present in group 16, thus it's possible highest oxidation number is +6 and its lowest oxidation number is 6-8 = -2, hence sulfide ion occurs in S2- and it can increase its oxidation number up to +6 during an oxidation-reduction reaction. As it is known that the increase in oxidation number indicates oxidation reaction .
So S2- can only function as reducing agent.