Which of the following is a strong acid?
- Acetic Acid
- Citric Acid
- Hydrochloric Acid
- Carbonic Acid
Answer: Hydrochloric Acid
HCl completely dissociates in water into H⁺ and Cl⁻ ions, making it a strong acid. Weak acids like acetic acid only partially dissociate. Strong acids are highly corrosive and used in industrial processes. [[NCERT Chemistry Class 10]]