Question

Aqua Regia is a mixture of-

• A. (a) Dilute Hydrochloric acid and concentrated Nitric acid.
• B. (b) Concentrated Hydrochloric acid and dilute Nitric acid.
• C. (c) Concentrated Hydrochloric acid $[1part]$ and concentrated Nitric acid $[3parts]$.
• D. (d) Concentrated Hydrochloric acid $[3parts]$ and concentrated Nitric acid$[1part]$.

Answer 1

The correct option is D

(d) Concentrated Hydrochloric acid $[3parts]$ and concentrated Nitric acid$[1part]$.

The explanation for the correct option- Option D

1. Aqua regia is an acidic material that is used for dissolving noble metals.
2. It is a mixture that contains three parts of concentrated hydrochloric acid($\mathit{H}\mathit{C}\mathit{l}$) and one part of concentrated nitric acid($\mathit{H}\mathit{N}{\mathit{O}}_{\mathbf{3}}$).

Explanation for incorrect options- Option A, B, C

1. A-Since aqua regia is a mixture of concentrated Hydrochloric acid and concentrated Nitric acid. This option is incorrect.
2. B-Since aqua regia is a mixture of concentrated Hydrochloric acid and concentrated Nitric acid. This option is incorrect.
3. C-Since mixture that contains three parts of concentrated Hydrochloric acid and One part of concentrated Nitric acid. This option is incorrect.

Hence, option D is correct because Aqua Regia is mixture of Concentrated hydrochloric acid $[3parts]$ and concentrated nitric acid$[1part]$.