MEDIUMMCQ SINGLEJEE Advanced ChemistryInorganic Chemistryp -Block Elements (group 15-18)Previous Year Questions

In which of the following compounds, sulphur show maximum oxidation number? (JIPMER 2017)

A.H₂SO₄

B.SO₃

C.H₂S₂O₇

D.All have same oxidation number for sulphur✓ Correct

Explanation

All have same oxidation number for sulphate, i.e +6. (a) Oxidation number of S is 2 4 H SO 2 x 8 0 x 6 (b) Oxidation number of S in SO₃ x 6 0 x 6 (c) Oxidation number of S in H₂S₂O₇ 2 2x 14 0 2x 12 x 6 [where, x = Oxidation number of sulphur (S)]

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