Which of the following compounds is a strong acid?

A. Acetic acid
B. Sodium hydroxide
C. Hydrochloric acid
D. Ammonia

Answer: Hydrochloric acid

Additional Information: Hydrochloric acid (HCl) is classified as a strong acid because it completely dissociates in water, releasing a high concentration of hydrogen ions, which contribute to its acidity.

Subjects: Chemical Bonding, Chemistry, Chemistry

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