1.

Aqua regia has the composition :

Answer»

1 PART CONC. `HNO_3 + 2` PARTS conc. HCI
1 part conc. `HNO_3 + 3` parts conc. HCI
1 part conc. `HNO_3` + 1 part conc. HCl
2 parts conc. `HNO_3 + 3` parts conc. HCI

Solution : 1 part conc. `HNO_3 + 3` parts conc. HCI


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