Question

Which among the following is not an example of oxidation?
a. Formation of metal oxides
b. Rusting
C. Burning of fuels
d. Photosynthesis​

Answer 1

Answer:

option a,b

Explanation:

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Answer 2

Answer:

Option (c) burning of fuels, is the correct answer in which oxidation doesn’t take place.

Explanation:

• Oxidation:- the term oxidation shows that the reactions where an element combines with oxygen, the oxidation state of atoms is changed due to the redox reaction, in a redox reaction one species undergoes oxidation, and the other one undergoes reduction it is characterized via actual or formal transfer of electrons between chemicals species.
• Metal oxide:- the solids which are crystalline in nature and include a metal cation and an oxide anion, when metal is oxidized it forms a hard scale of oxide, generally a mole of metal oxide occupies more space than a mole of the metal itself.
• Rusting:- when iron reacts with water in presence of oxygen to produce hydrated iron(|||)oxide, which is also known as rust, as well as corrosion and rust both, are the outcome of the oxidation process.
• Burning of fuel:- the burning of fuel is an exothermic reaction at a very high temperature, it generally occurs between a fuel and an oxidant, this reaction usually produces heat and light and it is considered a combustion reaction.
• Photosynthesis:- in photosynthesis the oxygen gets oxidized in water and the carbon dioxide gets reduced which involves oxidation and reduction reaction

Therefore, option (c) Burning of fuels, is the correct answer in which oxidation doesn’t take place.