p -Block elements - ll — Chemistry STD 12 Science — Question
CBSE BoardEnglish MediumSTD 12 ScienceChemistryp -Block elements - ll1 Mark
MCQ
Aqua regia is a mixture of
✓
$3HCl + 1HN{O_3}$
B
${H_3}P{O_4} + {H_2}S{O_4}$
C
$3HN{O_3} + 1HCl$
D
$HCl + C{H_3}COOH$
✓
Answer
Correct option: A.
$3HCl + 1HN{O_3}$
a Aqua regia is a mixture of nitric acid and hydrochloric acid, optimally in a molar ratio of $1: 3$. Aqua regia is a yellow-orange (sometimes red) fuming liquid, so named by alchemists because it can dissolve the noble metals gold and platinum, though not all metals.
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