1.

Aqua-regia is [Orissa JEE  2005]

A. 1 : 3 conc. \[HN{{O}_{3}}\] and conc. \[HCl\]
B. 1 : 2 conc. \[HN{{O}_{3}}\] and conc. \[HCl\]
C. 3 : 1 conc. \[HN{{O}_{3}}\] and conc. \[HCl\]
D. 2 : 1 conc. \[HN{{O}_{3}}\] and conc. \[HCl\]
Answer» B. 1 : 2 conc. \[HN{{O}_{3}}\] and conc. \[HCl\]


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