Concept explainers
(a)
Interpretation:
The loss of electrons needs to be classified as oxidation or reduction.
Concept Introduction :
In a redox
(a)
Answer to Problem 43UTC
Oxidation reaction.
Explanation of Solution
When electrons are lost in a
Here, species A get oxidized to
(b)
Interpretation:
The reaction of an oxidizing agent needs to be classified as oxidation or reduction.
Concept Introduction :
In a redox reaction both oxidation and reduction take place simultaneously. Oxidation takes place by loss of electrons and reduction takes place by gain of electrons. The oxidation state of a species increases on oxidation and decreases on reduction. When in reaction 1, one of the reactants get oxidized and 1 gets reduced, this is known as a redox reaction. The species that oxidizes others and itself gets reduced is known as an oxidizing agent.
(b)
Answer to Problem 43UTC
Reduction reaction.
Explanation of Solution
An oxidizing agent is the chemical species which itself gain electron/s and oxidizes other species. Therefore, the reaction of an oxidizing agent is a reduction reaction.
For example:
Here,
(c)
Interpretation:
The given reaction needs to be classified as oxidation or reduction:
Concept Introduction :
In a redox reaction both oxidation and reduction take place simultaneously. Oxidation takes place by loss of electrons and reduction takes place by gain of electrons. The oxidation state of a species increases on oxidation and decreases on reduction. In a reaction, oneof the reactants get oxidized and one gets reduced, this is known as a redox reaction. The species that oxidizes others and itself gets reduced is known as an oxidizing agent.
(c)
Answer to Problem 43UTC
Reduction reaction.
Explanation of Solution
The given reaction is as follows:
The oxidation state of molecular oxygen is zero. It gets reduced to -2 in
Therefore, the above reaction is a reduction reaction.
(d)
Interpretation:
The given reaction needs to be classified as oxidation or reduction:
Concept Introduction :
In a redox reaction both oxidation and reduction take place simultaneously. Oxidation takes place by loss of electrons and reduction takes place by gain of electrons. The oxidation state of a species increases on oxidation and decreases on reduction. In a reaction, one of the reactants get oxidized and 1 gets reduced, this is known as a redox reaction. The species that oxidizes others and itself gets reduced is known as an oxidizing agent.
(d)
Answer to Problem 43UTC
Reduction reaction.
Explanation of Solution
The given reaction is as follows:
Here, in the molecular bromine or Br2, the oxidation state of bromine is 0.
Now, in Br-, since, it gets reduced to -1, the bromine undergoes reduction. This takes place by gaining 2 electrons as there are 2 Br atoms in 1 Br2 molecule.
Therefore, the given reaction is reduction.
(e)
Interpretation:
The given reaction needs to be classified as oxidation or reduction:
Concept Introduction :
In a redox reaction both oxidation and reduction take place simultaneously. Oxidation takes place by loss of electrons and reduction takes place by gain of electrons. The oxidation state of a species increases on oxidation and decreases on reduction. In a reaction, one of the reactants get oxidized and one gets reduced, this is known as a redox reaction. The species that oxidizes others and itself gets reduced is known as an oxidizing agent.
(e)
Answer to Problem 43UTC
Oxidation reaction.
Explanation of Solution
In the given reaction is as follows:
The oxidation state of ‘Sn’ changes from +2 to +4. This means that Sn2+ loses2 electrons to form Sn4+. The oxidation state of an ion increases due to loss of electron/s thus, the given reaction is an oxidation reaction.
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Chapter 15 Solutions
Basic Chemistry
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