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20 December, 00:53

In which species does sulfur have the highest oxidation number? s8 (elemental form of sulfur) h2s so2 h2so3 k2so4?

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  1. 20 December, 01:04
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    There are rules to assigning conventional oxidation numbers to some elements. For those unspecified, you can solve them. This is how you solve it.

    *S8. Since this is in elemental form, its oxidation number is assigned as 0.

    *H2S. H is assigned with + 1. Since the compound is neutral, the overall charge is 0. So,

    2 (+1) + x = 0

    x = - 2

    The charge of S here is - 2.

    *SO₂. O is assigned with (-2). Using the same procedure,

    x + 2 (-2) = 0

    x = + 2

    The charge of S here is + 2.

    *H₂SO₃.

    2 (+1) + x + 3 (-2) = 0

    x = + 4.

    The charge of S here is + 4.

    *K₂SO₄. K is assigned with + 1.

    2 (+1) + x + 4 (-2) = 0

    x = + 6

    The charge of S here is + 6.

    The S with the highest oxidation number is the one in K₂SO₄.
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