Nature of Na2O is considered as alkali... bcz...sodium belongs to alkali group.....And it will be form Sodium hydroxide... NaOH....After dissolving in water.....Bhai....question me ...Na2O ...likhne ke baad ....Oxide nhi likha jaata....

Nature of the Oxide Na2O:

Na2O is an ionic compound composed of sodium (Na) and oxygen (O) ions. It is categorized as a basic oxide due to its chemical behavior. The nature of an oxide is determined by its reaction with water, acids, or bases. In the case of Na2O, let's explore its behavior when dissolved in water.

Reaction of Na2O with Water:

When Na2O is dissolved in water, it undergoes a vigorous exothermic reaction. The following steps explain the reaction in detail:

1. Dissociation of Na2O:
Na2O dissociates into its constituent ions in water:
Na2O(s) + H2O(l) ⟶ 2Na+(aq) + 2OH-(aq)

2. Formation of Sodium Hydroxide (NaOH):
The hydroxide ions (OH-) produced in the dissociation process react with water molecules to form sodium hydroxide:
2OH-(aq) + H2O(l) ⟶ 2NaOH(aq)

3. Release of Heat:
The reaction between Na2O and water is highly exothermic, meaning it releases heat. This heat is produced due to the strong ionic bond formation between Na+ and OH- ions. As a result, the solution becomes hot.

4. Alkaline Solution:
The resulting solution is alkaline due to the presence of hydroxide ions. Sodium hydroxide (NaOH) is a strong base and dissociates completely in water, producing hydroxide ions which increase the pH of the solution.

5. Formation of Sodium Hydroxide Solution:
The final product of the reaction is a solution of sodium hydroxide (NaOH) in water. The NaOH molecules are surrounded by water molecules, forming hydrated sodium hydroxide.

Summary:

In summary, when Na2O is dissolved in water, it dissociates into sodium (Na+) and hydroxide (OH-) ions. These hydroxide ions react further with water to form sodium hydroxide (NaOH), releasing heat in the process. The resulting solution is alkaline due to the presence of hydroxide ions, and it is commonly known as sodium hydroxide solution.