Final answer:
The equation KOH(aq) + NH₄Cl(aq) → NH₃(aq) + KCl(aq) + H₂O(l) represents a neutralization reaction, where an acid and a base react to form water and a salt. So, the correct answer is D.
Step-by-step explanation:
The reaction represented by the equation KOH(aq) + NH₄Cl(aq) → NH₃(aq) + KCl(aq) + H₂O(l) is a type of acid-base reaction, specifically a neutralization reaction. In this reaction, potassium hydroxide (KOH), which is a base, reacts with ammonium chloride (NH₄Cl), which acts as an acid because it can produce hydrogen ions in solution. The products formed are ammonia (NH₃), potassium chloride (KCl), and water (H₂O), which is typical for neutralization reactions, where an acid and a base react to form water and a salt. Additionally, every substance in the equation is in the aqueous state (aq) or liquid state (l), indicating that they are all dissolved in water or are water itself.