Question

explain why iron ii hydroxide is a base but not an alkali​

Answer 1

Explanation:

Bases that are soluble in water are called alkalis. For example, sodium hydroxide, potassium hydroxide, calcium hydroxide are soluble in water. ... But bases like copper hydroxide Cu(OH)2 ferric hydroxide (Fe(OH)3) aluminium hydroxide (Al(OH)3)do not dissolve in water. They are, therefore, not alkalis.

Answer 2

Iron(II) hydroxide is a base but not an alkali because it is insoluble in water and does not release hydroxide ions (OH-) when dissolved.

• Definition: A base is a substance that can accept a proton (H+) from an acid, while an alkali is a base that is soluble in water, forming hydroxide ions (OH-) when dissolved.

• Solubility: Iron(II) hydroxide is insoluble in water, meaning that it cannot form hydroxide ions when dissolved, and therefore cannot be classified as an alkali.

• pH: Iron(II) hydroxide has a pH greater than 7, indicating that it is a base. However, it cannot be classified as an alkali since it does not dissolve in water to produce hydroxide ions.

• Reaction with Acids: Iron(II) hydroxide reacts with acids, neutralizing them and forming a salt and water. This reaction is a characteristic of bases.

• Presence in Nature: Iron(II) hydroxide is commonly found in nature, such as in rust and as a mineral in rocks, where it can act as a base in chemical reactions.

#SPJ3