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Question

Which of the following statements regarding sulphur is incorrect ?

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> AIEEE 2011

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Solution

S2​ molecule is paramagnetic like O2​ and both have two unpaired electrons. At elevated temperature (∼1000K) S2​ is the dominant species.

The vapour at 200oC consists mostly of S8​ rings.

at 600C,
S8​ (g) → 3S2 ​(g)

S can exhibit a minimum oxidation state of 2
(Ex. H2S)
Here the oxidation state of sulphur is -2
Option (c) is the right answer

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