
(a)
Interpretation: Whether the reaction,
Concept introduction: The
(a)

Answer to Problem 78E
The reaction,
Explanation of Solution
The given chemical equation is shown below.
The oxidation state of carbon in
The oxidation state of each hydrogen atom in
The oxidation state of oxygen in
The oxidation state ofcarbon and each oxygen atom in
The oxidation state of each hydrogen atom and oxygen in
The oxidation state of carbon increases from
So, carbon is oxidized from
Thus,
The oxidation state of oxygen decreases from
So, oxygen is reduced from
Thus,
(b)
Interpretation: Whether the reaction,
Concept introduction: The oxidation-reduction reactions involve the changes with respect to the oxidation state of the species that are interacting in reaction. These reactions are helpful in the identification of a substance that is oxidized or reduced. Along with that these are also useful in predicting reaction species that act as an oxidizing agent/ reducing agent.
(b)

Answer to Problem 78E
The reaction,
Explanation of Solution
The given chemical equation is shown below.
The oxidation state of zinc in
The oxidation state of hydrogen in
The oxidation state of chlorine in
The oxidation state of zinc and each chlorine atom in
The oxidation state of each hydrogen atom in
The oxidation state of zinc increases from
So, zinc is oxidized from
Thus,
The oxidation state of hydrogen decreases from
So, hydrogen is reduced from
Thus,
(c)
Interpretation: Whether the reaction,
Concept introduction: The oxidation-reduction reactions involve the changes with respect to the oxidation state of the species that are interacting in reaction. These reactions are helpful in the identification of a substance that is oxidized or reduced. Along with that these are also useful in predicting reaction species that act as an oxidizing agent/ reducing agent.
(c)

Answer to Problem 78E
The reaction,
Explanation of Solution
The given chemical equation is shown below.
The oxidation state of each chromium atom and oxygen atom in
The oxidation state of oxygen and hydrogen atom in
The oxidation state of chromium atom and each oxygen atom in
The oxidation state of each hydrogen atom and oxygen atom in
The oxidation state of all the elements present on reactant side are equal to the oxidation state of all the elements present on product side.
So, there is no change in oxidation state of any element.
Thus, the given reaction is not the oxidation-reduction reaction.
(d)
Interpretation: Whether the reaction,
Concept introduction: The oxidation-reduction reactions involve the changes with respect to the oxidation state of the species that are interacting in reaction. These reactions are helpful in the identification of a substance that is oxidized or reduced. Along with that these are also useful in predicting reaction species that act as an oxidizing agent/ reducing agent.
(d)

Answer to Problem 78E
The reaction,
Explanation of Solution
The given chemical equation is shown below.
The oxidation state of each atom of oxygen in
The oxidation state of nitrogen atom and oxygen atom in
The oxidation state of each oxygen atom in
The oxidation state ofnitrogen atom and each oxygen atom in
The oxidation state of nitrogen increases from
So, nitrogen is oxidized from
Thus,
The oxidation state of oxygen decreases from
So, oxygen is reduced from
Thus,
(e)
Interpretation: Whether the reaction,
Concept introduction: The oxidation-reduction reactions involve the changes with respect to the oxidation state of the species that are interacting in reaction. These reactions are helpful in the identification of a substance that is oxidized or reduced. Along with that these are also useful in predicting reaction species that act as an oxidizing agent/ reducing agent.
(e)

Answer to Problem 78E
The reaction,
Explanation of Solution
The given chemical equation is shown below.
The oxidation state of each atom of oxygen in
The oxidation state of each hydrogen atom in
The oxidation state of each hydrogen atom and oxygen atom in
The oxidation state of each oxygen atom in
The oxidation state of oxygen increases from
So, oxygen is oxidized from
Thus,
The oxidation state of oxygen decreases from
So, oxygen is reduced from
Thus,
(f)
Interpretation: Whether the reaction,
Concept introduction: The oxidation-reduction reactions involve the changes with respect to the oxidation state of the species that are interacting in reaction. These reactions are helpful in the identification of a substance that is oxidized or reduced. Along with that these are also useful in predicting reaction species that act as an oxidizing agent/ reducing agent.
(f)

Answer to Problem 78E
The reaction,
Explanation of Solution
The given chemical equation is shown below.
The oxidation state of copper atom in
The oxidation state of chlorine atom in
The oxidation state of copper atom and each chlorine atom in
The oxidation state of copper atom in
The oxidation state of copper increases from
So, copper is oxidized from
Thus,
The oxidation state of copper decreases from
So, copper is reduced from
Thus,
(g)
Interpretation: Whether the reaction,
Concept introduction: The oxidation-reduction reactions involve the changes with respect to the oxidation state of the species that are interacting in reaction. These reactions are helpful in the identification of a substance that is oxidized or reduced. Along with that these are also useful in predicting reaction species that act as an oxidizing agent/ reducing agent.
(g)

Answer to Problem 78E
The reaction,
Explanation of Solution
The given chemical equation is shown below.
The oxidation state of hydrogen atom and chlorine atom in
The oxidation state of nitrogen and each hydrogen atom in
The oxidation state of nitrogen atom and each hydrogen atom in
The oxidation state of chlorine atom in
The oxidation state of all the elements present on reactant side are equal to the oxidation state of all the elements present on product side.
So, there is no change in oxidation state of any element
Thus, the given reaction is not the oxidation-reduction reaction.
(h)
Interpretation: Whether the reaction,
Concept introduction: The oxidation-reduction reactions involve the changes with respect to the oxidation state of the species that are interacting in reaction. These reactions are helpful in the identification of a substance that is oxidized or reduced. Along with that these are also useful in predicting reaction species that act as an oxidizing agent/ reducing agent.
(h)

Answer to Problem 78E
The reaction,
Explanation of Solution
The given chemical equation is shown below.
The oxidation state of silicon atom and each chlorine atom in
The oxidation state of chlorine and hydrogen atom in
The oxidation state of silicon atom and each oxygen atom in
The oxidation state of all the elements present on reactant side are equal to the oxidation state of all the elements present on product side.
So, there is no change in oxidation state of any element
Thus, the given reaction is not the oxidation-reduction reaction.
(i)
Interpretation: Whether the reaction,
Concept introduction: The oxidation-reduction reactions involve the changes with respect to the oxidation state of the species that are interacting in reaction. These reactions are helpful in the identification of a substance that is oxidized or reduced. Along with that these are also useful in predicting reaction species that act as an oxidizing agent/ reducing agent.
(i)

Answer to Problem 78E
The reaction,
Explanation of Solution
The given chemical equation is shown below.
The oxidation state of magnesium in
The oxidation state of magnesium atom and each chlorine atom in
The oxidation state of silicon atom and each chlorine atom in
The oxidation state of silicon in
The oxidation state of magnesium increases from
So, magnesium is oxidized from
Thus,
The oxidation state of silicon decreases from
So, silicon is reduced from
Thus,
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Chapter 4 Solutions
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