Question

As an element is oxidized, its oxidation number (
1 marks)
Ans.
Increases as electron gain
Decreases as electron lost
Increases as electron lost
Decreases as electron gain
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Answer 1

Answer:

decreases as electon lost is the correct answer

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Answer 2

As an element is oxidized, its oxidation number increases as electrons are lost (option-c).

• Loss of electrons and gain of electrons form ions.
• Loss of electrons forms a cation.
• The gain of electrons forms an anion.
• Oxidation number (O.N.) increases as an element in its atomic form has zero O.N. and when it is in its cationic form, its O.N. increases, it gets oxidized.
• Similarly, when an element is in its anionic form, its O.N. decreases, and it gets reduced.
• Therefore, as an element is oxidized, its O.N. increases by increasing the loss of electrons.