Correct option is B. $$conc. HNO_3 +3\ conc. HCl$$ Aqua regia is a mixture of hydrochloric acid (HCl) and nitric acid (HNO3) at a ratio of either 3:1 . It is a reddish-orange or yellowish-orange fuming liquid
Hence option (B) is correct.
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Aqua regia releases nascent:
(a) What is aqua regia? (b) State the uses of aqua-regia. (c) What is the function of HCI in the preparation of aqua-regia? [5 MARKS]
What is aqua regia? Name two special metals which are insoluble in common reagents but dissolve in aqua-regia.
What is aqua regia? Give examples of metals that are soluble in aqua regia