What is the chemical name for NH4OH?

The chemical name for NH4OH is ammonium hydroxide. This compound consists of the ammonium ion (NH4+) and the hydroxide ion (OH-). In naming this compound, it is important to recognize that the "NH4" indicates the presence of ammonium, which is a common cation derived from ammonia. The "OH" represents the hydroxide anion.

In this case, the cation ammonium pairs with the hydroxide anion to form ammonium hydroxide, which is often encountered in various applications, particularly in cleaning products and as a laboratory reagent. Its systematic naming appropriately reflects the constituents of the compound, using “ammonium” to identify the positive ion and “hydroxide” for the negative ion.

The other options, such as potassium hydroxide, sodium hydroxide, and lithium hydroxide, do not represent ammonium hydroxide as they contain different cations (potassium, sodium, and lithium, respectively) combined with hydroxide, leading to entirely different chemical properties and uses.