A mixture of concentrated nitric acid and concentrated hydrochloric acid in the ratio of . . . . . . . . is called Aqua-Regia.
A. 3 : 1
B. 1 : 2
C. 2 : 3
D. 1 : 3
Answer: Option D
This Question Belongs to Chemistry GK Chapter Wise >> Acid, Base And Salts
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