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Redox Reactions

Question
CBSEENCH11006741
Wired Faculty App

Assign oxidation number of the underlined elements in each of the following species:
straight K subscript 2 bottom enclose Mn straight O subscript 4



Solution
straight K subscript 2 bottom enclose Mn straight O subscript 4
Let the oxidation number of Mn = x
                         +1  x - 2
                         K2 MnO4
therefore                           2(+1) +x +4(-2) = 0
or                                 x - 6 = 0
or                                  x = +6
therefore   Oxidation number of Mn in K2MnO4 = +6

Some More Questions From Redox Reactions Chapter

What is reduction (electronic concept)?

What is reducing agent (electronic concept)?

What is an oxidising agent (electronic concept)?

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

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