In the reaction PbO - C-Pb - CO

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Oxidation and Reduction

In the reacti...

Question

In the reaction $PbO + C \to Pb + CO$

$P b O$ is oxidized.

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$C$ acts as oxidizing agent.

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$C$ acts as reducing agent.

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This reaction does not represent redox reaction.

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Solution

The correct option is C
$C$ acts as reducing agent.

Explanation for correct option:
(C):
The reaction corresponding to the gain of Oxygen ( $O$ ) or loss of Hydrogen ( $H$ ) by a species is called an oxidation reaction. On the other hand, the reaction corresponding to the loss of Oxygen or gain of Hydrogen by a species is called a reduction reaction.
The substances which have the ability to oxidize others and get reduced by themselves are known as oxidizing agents. Whereas the substances which have the ability to reduce others and get oxidized by themselves are known as reducing agents.
The given reaction is: $PbO (s) + C (s) \to Pb (s) + CO (g)$
In this reaction, carbon ( $C$ ) atom is converted to carbon monoxide ( $CO$ ) on the addition of oxygen atom to it. Hence, $C$ is being oxidized and acts as a reducing agent. On the other hand, oxygen is getting removed from lead oxide ( $PbO$ ) to form lead ( $Pb$ ), thus, $PbO$ is getting reduced, and acts as an oxidizing agent. Since oxidation and reduction reactions take place simultaneously, it is a redox reaction.
Explanation for incorrect options:
(A) Since Oxygen is getting removed from Lead oxide ( $PbO$ ) to form Lead ( $Pb$ ), thus, $PbO$ is getting reduced not oxidized.
(B) In the given reaction, the carbon ( $C$ ) atom gets converted to carbon monoxide ( $CO$ ) on the addition of oxygen atom to it. Hence, $C$ is being oxidized and acts as a reducing agent not oxidizing agent.
(D) In the given reaction, oxidation of carbon and reduction of lead oxide takes place. and since oxidation and reduction reactions take place simultaneously, thus, it is a redox reaction.
Final Answer:
Hence, option (C) is correct.

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Similar questions

The amount of solutes ‘A’, ‘B’ and ‘C’ in $300$ g of water at $25 ° C, 40 ° C$ and $60 ° C$ in their saturated solutions are given below. Identify the correct statement from the following when hot saturated solutions of A, B and C are cooled slowly from $60 ° C$ to $25 ° C$ .

	$25 ° C$	$40 ° C$	$60 ° C$
A	$110 g$	$90 g$	$105 g$
B	$140 g$	$170 g$	$180 g$
C	$130 g$	$150 g$	$140 g$

The amounts of solutes ‘A’, 'B' and ‘C’ in $300$ g of water at $25 ° C$ , $40 ° C$ and $60 ° C$ in their saturated solutions are given below. Identify the true statement among the following:

	$25 ° C$	$40 ° C$	$60 ° C$
A	$110$ g	$90$ g	$105$ g
B	$140$ g	$170$ g	$180$ g
C	$130$ g	$150$ g	$140$ g

Complete and balance the following equations

(ⅰ ) $N_{2}$ + $H_{2}$ $\to$ $. . . . .$

(ⅱ) ${NH}_{3}$ + ${Cl}_{2} E x c e s s$ $\to$ $. . . . .$

(ⅱⅰ) $PbO$ + ${NH}_{3}$ $\to$ $. . . . . + . . . . + H_{2} O$

(ⅳ) ${NH}_{3}$ + $O_{2}$ $\overset{pt}{\to} 800 ° C$ $. . . . . + . . . . . .$

The properties of a few elements are given below:

Element	A	B	C
Melting point	$100 ° C$	$120 ° C$	$213 ° C$
Atomic size	120 pm	131 pm	136 pm

Answer the following giving reasons:

Should the metallic character decrease or increase from A to C?

The properties of a few elements are given below:

Element	A	B	C
Melting point	$100 ° C$	$120 ° C$	$213 ° C$
Atomic size	120 pm	131 pm	136 pm

Answer the following giving reasons:

Will the valencies of all the elements be same or different?

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In the reaction PbO+C→Pb+CO

In the reaction $PbO + C \to Pb + CO$