32.Aqua regia is a mixture of concentrated hydrochloric acid (HCL) and concentrated nitric acid (HNO3), used to clean the gold Jewelleries. Choose the correct option of ratio of acids in aqua regia:
HCl: HNO3: 3:1
HCl: HNO3: 1:3
HCl: HNO3: 2:1
None of these
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Answer:
HCl : HNO3 = 3 : 1
Explanation:
HCl : HNO3 = 3 : 1
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