A strong acid:Deselect Answer All the these Partially gets ionized in water Do not get ionized in water Completely gets ionized in water

A strong acid is defined by its ability to completely dissociate in water, meaning it fully ionizes to release hydrogen ions (H⁺) when dissolved.

Detailed Explanation:

1. Definition: Strong acids are characterized by their strong electrolyte properties, indicating that they significantly increase the concentration of hydrogen ions in solution.

2. Dissociation in Water: When a strong acid, such as hydrochloric acid (HCl), is added to water, it fully dissociates into its ion components: $\text{HCl (aq)} \rightarrow \text{H}^+ (aq) + \text{Cl}^- (aq)$ This reaction indicates that all of the HCl molecules break apart into H⁺ and Cl⁻ ions.

3. Comparison with Weak Acids: Unlike weak acids that only partially ionize (e.g., acetic acid), strong acids exhibit a complete ionization, resulting in a solution that has a high concentration of H⁺ ions, leading to a low pH.

4. Conclusion: Therefore, the correct answer is that strong acids "completely get ionized in water."

Final Answer:

Strong acids completely get ionized in water.