Aquaregia is used to dissolve noble metals. Aquaregia is
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a
1 part of conc. HNO3+3 parts of conc. HCl
b
1 part of conc. HNO3+1 part of conc. HCl
c
3 parts of conc. HNO3+1 part of conc. HCl
d
1 part of conc. HNO3+1 part of conc. H2SO4
answer is A.
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Detailed Solution
Aquaregia is 3 parts of conc. HCl and 1 part of conc. HNO3.It forms NOCl which liberates nascent chlorine;Nascent chlorine is responsible for the dissolution of Au and Pt.