A) Aqua regia, \[HCl,\,HN{{O}_{3}}\]
B) Aqua regia,\[HN{{O}_{3}},\,HCl\]
C) \[{{H}_{2}}S{{O}_{4}},{{H}_{2}}O,S{{O}_{2}}\]
D) \[{{H}_{2}}S{{O}_{4}},{{H}_{2}}S,S{{O}_{3}}\]
Correct Answer: A
Solution :
Aqua regia (X) is the Latin name for 'royal water'. It is a freshly prepared mixture of concentrated hydrochloric acid (Y) and concentrated nitric acid (Z) in the ratio of 3:1 by volume. Some of the properties of aqua regia are different from that of cone. HCI and conc.\[HN{{O}_{3}}.\]
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