Which of the following behaves as both oxidising and reducing agents Options: A . &nbsp H 2 S O 4 B . &nbsp S O 2 C . &nbsp H 2 S D . &nbsp H N O 3

Which of the following behaves as both oxidising and reducing agents

Discussion Forum : Redox Reactions

Question -

Which of the following behaves as both oxidising and reducing agents

Options:

A .

H_{2} S O_{4}

B .

S O_{2}

C .

H_{2} S

D .

H N O_{3}

Answer: Option B
:
B

In $S O_{2}$ , sulphur has a +4 oxidation state. In $H_{2} S O_{4}$ , Sulphur exhibits its highest oxidation state of +6.
On the other hand - in $H_{2} S$ , sulphur exists in its lowest -2 oxidation state. Thus, we can surmise
that $S O_{2}$ could act as both an oxidising agent as well as a reducing agent. Nitrogen exhibits its highest oxidation
state of +5 in $H N O_{3}$ .

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