Oxidation Number Of Sulphur

Chemistry Level 1

In which of the following compounds the oxidation number of sulphur is + 7 +7 ?

A. N a 2 S 2 O 3 Na_2S_2O_3

B. H 2 S 2 O 7 H_2S_2O_7

C. H 2 S O 4 H_2SO_4

D. None Of These \text{None Of These}

C A D B

Ram Mohith by Ram Mohith , 18, India

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1 solution

Ram Mohith
May 9, 2018

Maximum Oxidation Number of an Element is it’s Valence electrons (or) it’s Group number . \text{ it's Valence electrons (or) it's Group number .}

So, the maximum oxidation number of Sulphur is +6 \text{ Sulphur is +6} because sulphur has 6 valence electrons.

Therefore, The oxidation number of Sulphur cannot be +7 as it's maximum oxidation number is +6 .

If the oxidation number of sulphur in a compound exceeds + 6 +6 (as in N a 2 S 2 O 3 Na_2S_2O_3 ) it indicates the presence of peroxy linkages.

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How do you calculate the oxidation number in N a 2 S 2 O 3 Na_2S_2O_3 ?

Richard Costen - 2 years, 4 months ago

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