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Redox Reactions

Question
CBSEENCH11006744
Wired Faculty App

Assign oxidation number of the underlined elements in each of the following species:
straight H subscript 2 bottom enclose straight S subscript 2 end enclose straight O subscript 7
  




Solution

Let the oxidation number of S =x
Oxidation number of H =1
Oxidation number of O= (-2)
Therefore the oxidation number of S in H2S2O7 is,
1(2) +2x+7(-2)=0
2x-12=0
x=6

Some More Questions From Redox Reactions Chapter

Can oxidation occur without reduction?

What are redox reactions?

What are direct redox reactions? Give one example.

What are indirect redox reactions?

Write formulas for the following compounds:
(a) Mercury (II) chloride
(b) Nickel (II) sulphate
(c) Tin (IV) oxide
(d) Thallium (I) sulphate
(e) Iron (III) sulphate
(f) Chromium (III) oxide

What are electrolytes?

What are cations and anions?

What is electrolysis?

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