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Allotropes of Phosphorus

In which of t...

Question

In which of the following, sulphur has the lowest oxidation number?

H_{2} S O_{4}

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S O_{2}

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H_{2} S O_{3}

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H_{2} S

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Solution

The correct option is D $H_{2} S$
Lowest oxidation number is $- 2$ as after gaining 2 electrons it achieves octet state. In $H_{2} S$ , $S$ is in its lowest oxidation state that is $- 2$ .

Hence, it can only act as a reducing agent.

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