Question

Which acid is known as aqua fortis?

• A. Sulphuric acid
• B. Nitric acid
• C. Hydrochloric acid
• D. Carbonic acid

Hint:

Remember these historical alchemical names:

\textbf{Aqua Fortis} ("strong water") = \textbf{Nitric Acid}
\textbf{Spirit of Salt} = \textbf{Hydrochloric Acid}
\textbf{Oil of Vitriol} = \textbf{Sulphuric Acid}

Answer 1

The Correct Option is B

Step 1: Definition. "Aqua fortis" is an old alchemical term. It means "strong water" in Latin.

Step 2: Acid Identification. This name reflects the acid's ability to dissolve most metals, including silver. The acid historically called aqua fortis is nitric acid (\(HNO_3\)).

Step 3: Option Assessment. Considering this information, nitric acid is the correct choice. Aqua regia ("royal water"), a nitric and hydrochloric acid mixture, was named for its ability to dissolve gold.