Which of the following is not a reducing agnet ?

S O_{2}

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H_{2} O_{2}

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{C O}_{2}

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{N O}_{2}

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Solution

The correct option is D ${C O}_{2}$
The reducing agent is the one which itself can get oxidized.

$+ 4 S O_{2}$ can be oxidized to $+ 6 S$

$H_{2} {- 1 O}_{2}$ can be oxidized to ${0 O}_{2}$

$+ 4 N O_{2}$ can be oxidized to $+ 5 N$ .

But $+ 4 C O_{2}$ can not be oxidized.

Therefore, ${C O}_{2}$ is not a reducing agent.

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