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Multiple Choice
Which of the following is a characteristic of a strong acid?
A
It has a high pH value.
B
It partially dissociates in water.
C
It completely dissociates in water.
D
It forms a weak conjugate base.
Verified step by step guidance
1
Understand the definition of a strong acid: A strong acid is one that completely dissociates in water, meaning it donates all of its available protons (H⁺ ions) to the solution.
Consider the pH value: Strong acids have low pH values, typically less than 3, because they increase the concentration of H⁺ ions in the solution.
Evaluate the dissociation in water: Strong acids completely dissociate in water, unlike weak acids which only partially dissociate.
Analyze the conjugate base: The conjugate base of a strong acid is weak because the strong acid has already donated its protons, leaving a less reactive base.
Review the options: The correct characteristic of a strong acid is that it completely dissociates in water, which aligns with the definition and behavior of strong acids.