Name: All About Alcohols
Uploaded: 2019-07-19
Duration: 11 min 22 s
Description: Alcohols may be considered organic derivatives of water in which one of the hydrogen atoms has been replaced by an alkyl group. Let's explore!

Question

What are the various definitions of oxidation?

Accepted Answer

Oxidation means the gaining of oxygen in a chemical reaction, various definitions of oxidation are as follows:

$1 .$ According to Classical or earlier concepts oxidation is a process that involves the addition of oxygen or any electronegative element or the removal of hydrogen or any electropositive element. For eg: In this reaction, oxygen is added to copper to form copper oxide. Hence, it is an oxidation reaction.

$2 Cu + O_{2} \to 2 CuO$

$2 .$ Oxidation in terms of Electron Transfer-Oxidation is defined as a process that involves the loss of electrons by an atom, ion, or molecule. The substance which oxidizes others is called an oxidizing agent or oxidant.

$Na \underset{}{\to} {Na}^{+} + e^{-}$

$C + O_{2} \underset{}{\to} {CO}_{2}$

$3 .$ The oxidation number method-The increases the oxidation state of an atom, through a chemical reaction, is known as oxidation.

$Cu \overset{oxidation}{\to} {Cu}^{2 +} + 2 e^{-}$

Here oxidation number increases from $0 to 2$ .

Maharashtra Board Solutions for Chapter: Alcohols, Phenols, and Ethers, Exercise 5: Can you recall ?

Maharashtra Board Chemistry Solutions for Exercise - Maharashtra Board Solutions for Chapter: Alcohols, Phenols, and Ethers, Exercise 5: Can you recall ?

Questions from Maharashtra Board Solutions for Chapter: Alcohols, Phenols, and Ethers, Exercise 5: Can you recall ? with Hints & Solutions

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