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Oxidation Number Of Sulphur

Chemistry Level 1

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

A. $Na_2S_2O_3$

B. $H_2S_2O_7$

C. $H_2SO_4$

D. $\text{None Of These}$

C A D B

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by Ram Mohith

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