Question

which of the following is basic in nature

Answer 1

Ur answer is CaO....mettalic oxide is basic in nature.

Answer 2

Cao is basic in nature. (Option B )

• Acidic oxides are chemicals that, when dissolved in water, can produce an acidic solution. When non-metal combines with oxygen, acidic oxides are generated. When metals with higher oxidation states react with oxygen, acidic oxides are sometimes generated. Aqueous acids are formed when acidic oxides react with water.

• Acid anhydrides are a type of acidic oxide. This is because when that oxide is dissolved in water, it forms an acid molecule. Sulfur dioxide is known as sulfurous anhydride, while sulfur trioxide is known as sulfuric anhydride. Acid oxides can form a salt when they react with a base. Some examples of acidic oxides are CO2, P2O5, NO2, SO3, etc.

• When dissolved in water, basic oxides, also known as base anhydrides, can generate a basic solution. The reaction of oxygen with metals results in the formation of basic oxides. Most basic oxides are ionic in form due to the difference in electronegativity between oxygen and metals. They have ionic connections between atoms as a result.

• Basic oxides actively react with water, forming basic compounds. When these oxides come into contact with acids, they generate salt and water. The production of hydroxyl ions (OH–) elevates the pH of water when a basic oxide is introduced to it. Na2O, CaO, MgO, and other basic oxides are examples of common basic oxides. As a result, metal oxides are predominantly basic oxides.

• Water (H 2 O) is amphoteric, which means it may serve as both an acid and a base depending on the reaction. However, because it contains an equal number of H + and OH – ions and has a pH of 7, exceedingly pure water is always neutral (neither acidic nor basic).
• HCl Hydrochloric acid is an acid and not a base.