Q: Which one of the following was the first mineral acid discovered?
(a)Sulphuric acid
(b)Hydrochloric acid
(c)Nitric acid
(d)Phosphoric acid
Correct Answer: (a)
The correct answer is (b): Hydrochloric acid. Subject: Geography | Sub-topic: Economic & Mineral Geography Note: This answer was determined through AI-based research. Verify against the official answer key when available.