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Q.

Loss of electrons is called:


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a

Reduction

b

Both (1) and (2)

c

Oxidation

d

None 

answer is B.

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Detailed Solution

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concept - When an atom’s oxidation number increases, this is referred to as the oxidation process and the reduction is the reverse of oxidation, and thus in this an atom’s oxidation number reduces.
Now, Oxidation is defined as the gain of oxygen atoms or the loss of electrons. Thus, during oxidation, the oxidation state of the species increases.
2A+O 2 →2AO or A→ A + +e -
Reduction is defined as the loss of an oxygen atom or gain of a hydrogen atom or the gain of electrons. Thus, during reduction, the oxidation state of the species decreases.
2B+H 2 →2BH or B+e - → B −
Hence, the loss of electrons is related to the oxidation reaction and thus the correct option is (2).
 
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