Final answer:
An acid-base neutralization reaction occurs when an acid and a base react to form water and a salt. The only reaction that fits this pattern is HCl + KOH → KCl + H₂O.
Step-by-step explanation:
An acid-base neutralization reaction occurs when an acid and a base react to form water and a salt. The reaction is typically represented by the following general equation: acid + base ⇒ salt + water.
Out of the options provided, the only reaction that fits this pattern is option b: HCl + KOH → KCl + H₂O. In this reaction, hydrochloric acid (HCl) reacts with potassium hydroxide (KOH) to form potassium chloride (KCl) and water (H₂O).