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TextBook Solutions for Board of High School and Intermediate Education Uttar Pradesh Class 11 Chemistry Chemistry Part Ii Chapter 8 Redox Reactions

Question 1

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What is oxidation (electronic concept)?

Solution

It is a process in which an atom or anion loses one or more electrons. Oxidation is also called de-electronation.

Question 2

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What is reduction (electronic concept)?

Easy

Question 3

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What is reducing agent (electronic concept)?

Easy

Question 4

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What is an oxidising agent (electronic concept)?

Easy

Question 5

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Write the following redox reaction using half equation:
$Zn left parenthesis straight s right parenthesis space plus space PbCl subscript 2 left parenthesis aq right parenthesis space space rightwards arrow space space space space Pb left parenthesis straight s right parenthesis space plus space ZnCl subscript 2 left parenthesis aq right parenthesis$
Mention:
(i) Which reactant is oxidised? To what?
(ii) Which reactant is the oxidiser?
(iii) Which reactant is reduced? To what?
(iv) Which reactant is the reducer?

Easy

Question 6

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In the reduction,
$MnO subscript 2 space plus space 4 HCl space space rightwards arrow space space space MnCl subscript 2 space plus space Cl subscript 2 space plus space 2 straight H subscript 2 straight O$
which species is oxidised?

Easy

Question 7

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Can oxidation occur without reduction?

Easy

Question 8

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What are redox reactions?

Easy

Question 9

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What are direct redox reactions? Give one example.

Easy

Question 10

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What are indirect redox reactions?

Easy

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