The conjugate acid of ClO4– (perchlorate ion) is HClO4 (perchloric acid).
To understand this, we need to look at the concept of conjugate acids and bases. In simple terms, a conjugate acid is formed when a base gains a proton (H+). In this case, ClO4– acts as a base. When it accepts a proton, it transforms into its conjugate acid, which is HClO4.
Perchloric acid is a strong acid and is known for its utility in various chemical reactions, including those involving oxidizing agents. Thus, if ClO4– reacts with an acid, it will become HClO4.