Redox Reactions And Electrochemistry Ques 451

Question: Oxidation number of sulphur in $ S_2O_3^{2-} $ is [CPMT 1979]

Options:

A) - 2

B) + 2

C) + 6

D) 0

Show Answer

Answer:

Correct Answer: B

Solution:

$ \overset{*,}{\mathop{S_2O_3^{2-}}}, $ $ 2x+3(-2)=-2 $ ; $ x=+2 $ .



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