Question

The oxidizing and reducing property across period:
A. Increase and decreases respectively
B. Decreases and increases respectively
C. Both increases
D. Both decreases

Answer 1

Hint – Oxidation is a reaction in which there is a loss of an electron, and oxidation potential follows the same trends as the ionization energy. Reduction is a reaction that results in the gain of electrons and the reduction potential follows the same trend as the electron affinity.

Complete answer:
We have been asked whether the oxidizing and reducing property increases or decreases across a period.
Now, let us know about oxidation and reduction-
Oxidation is a type of reaction that results in the loss of an electron. The oxidation potential follows the same trends as the ionization energy. This is because the smaller the ionization energy, the easier it is to remove an electron; thus, we can say that oxidizing property increases across a period.
Now, reduction is a type of reaction that results in the gaining of electrons and the reduction potential follows the same trend as the electron affinity. This is because the larger, negative electron affinity, the easier it is to give an electron and thus reducing property decreases across a period.
We can also explain this by looking at the following points:
The elements at the right side of the periodic table have a greater tendency to gain electron, and hence acquiring negative charge, so they have a strong tendency to oxidise other elements by getting reduced, so moving across the period tendency of gaining electrons increases and so the oxidising power also increases and the reducing power decreases.
Therefore, the oxidizing property increases and reducing property decreases across a period.

Hence, the correct option is A.

Note – Whenever such types of questions appear then, as mentioned in the solution we have discussed about both the oxidation and reduction reaction, and as we can see oxidation potential follows the ionization energy and reduction potential follows the electron affinity, so the oxidizing property increases and reducing property decreases across the period.