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Redox Reactions

Short Answer Type

1. What is oxidation (electronic concept)?

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What is reduction (electronic concept)?

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What is reducing agent (electronic concept)?

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4. What is an oxidising agent (electronic concept)?

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5. 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?

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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?

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Can oxidation occur without reduction?

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What are redox reactions?

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9. What are direct redox reactions? Give one example.

Redox reactions in which oxidation and reduction take place in the same vessel are called direct redox reactions. For example, displacement of copper from CuSO₄ solution when zinc rod is placed in it.

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10.

What are indirect redox reactions?

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