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Redox Reactions

Question
CBSEENCH11006746
Wired Faculty App

What are the oxidation number of the underlined elements in each of the following and how do you rationalise your results?
straight K bottom enclose straight I subscript 3

Solution
KI subscript 3
The structure of KI3 is K+ open square brackets 1 minus 1 space leftwards arrow space 1 close square brackets to the power of negative 1 end exponent
Here a coordinate bond is formed between I2 molecule and I- ion. The oxidation number of this iodine atom forming the I2 molecule is zero while that of iodine forming the coordinate bond is -1.

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?

Mention two uses of electrolysis.

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