Q. Aqua-regia reacts with Pt to yield -

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$Pt\left(\right.NO_{3}\left(\left.\right)_{4}$

$H_{2}PtCl_{6}$

$PtCl_{4}$

$PtCl_{2}$

Solution:

Aqua-regia is a mixture of nitric acid and hydrochloric acid in molar ratio $1:3$ . It is yellow orange fuming liquid. In Aqua-regia Pt form chloroplatinic acid, $H_{2}PtCl_{6}$

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