Question

Gold and Platinum are soluble in the mixture of
(a) Conc HCl + Conc HNO3
(b) Conc HBr + Conc H2SO4
(c) Germanium
(d) Copper
(c) Conc H2SO4 +ConcHNO3
(d) Conc HCl + Conc H3PO4​

Answer 1

Answer:

I confused in the option (a) Conc HCI + Conc HNO3 and (c) Conc H2SO4 + Conc HNO3

Answer 2

Answer:

options a.) ConC HCI + ConC HN03 is the only correct answer

:• GOLD AND PLATINUM ARE SOLUBLE IN THE MIXTURE OF OPTION C