(a) Give an example of an oxidation reaction.
(b) Is oxidation an exothermic or an endothermic reaction ?
(c) Exmplain, by giving an example, how oxidation and reduction proceed side by side.
(a) Give an example of an oxidation reaction.
(b) Is oxidation an exothermic or an endothermic reaction ?
(c) Exmplain, by giving an example, how oxidation and reduction proceed side by side.
(a)
The reaction proceeds by the addition of Oxygen (or) removal of hydrogen is called oxidation (or) Loss of electrons (or) the reaction proceeds with increase in the oxidation state (charge) of the central atom is called oxidation. Generally Oxidation reactions are exothermic reactions.
Ex: C+O2⟶CO2
(b)
Oxidation can be both exothermic or endothermic reaction depending upon the reaction.
(c)
Oxidation is defined as a process that involves a gain of oxygen or a loss of hydrogen. When a substance gains oxygen or loses hydrogen during a reaction, it is oxidized. This will happen only when there is another substance present that will either supply oxygen or accept Hydrogen from it. When this substance will accept hydrogen or supply oxygen, then in this process, it will get reduced (as reduction is defined as a process that involves a loss of oxygen or gain of Hydrogen).
Hence while one substance will gain oxygen or lose Hydrogen, the other must be present to lose oxygen or gain Hydrogen.
That is why it is said that that oxidation and reduction go hand in hand, or side by side i.e. they occur simultaneously.
(a)
The reaction proceeds by the addition of Oxygen (or) removal of hydrogen is called oxidation (or) Loss of electrons (or) the reaction proceeds with increase in the oxidation state (charge) of the central atom is called oxidation. Generally Oxidation reactions are exothermic reactions.
Ex: C+O2⟶CO2
(b)
Oxidation can be both exothermic or endothermic reaction depending upon the reaction.
(c)
Oxidation is defined as a process that involves a gain of oxygen or a loss of hydrogen. When a substance gains oxygen or loses hydrogen during a reaction, it is oxidized. This will happen only when there is another substance present that will either supply oxygen or accept Hydrogen from it. When this substance will accept hydrogen or supply oxygen, then in this process, it will get reduced (as reduction is defined as a process that involves a loss of oxygen or gain of Hydrogen).
Hence while one substance will gain oxygen or lose Hydrogen, the other must be present to lose oxygen or gain Hydrogen.
That is why it is said that that oxidation and reduction go hand in hand, or side by side i.e. they occur simultaneously.
