MCQ
Aqua-regia is
  • $1 : 3$ 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

Correct option: A.
$1 : 3$ conc. $HN{O_3}$ and conc. $HCl$
a
(a) One part of concentrated $HN{O_3}$ and $3$ parts concentrated $HCl$ form aquaregia.

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