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Which of the following is used for dissolution of gold?

(a) Hydrochloric acid

(b) Sulphuric acid

(c) Nitric acid

(d) Aqua regia

Answers (1)

Answer : (d)

Aqua-regia is used for the dissolution of gold.

Aqua-regia is a mixture of conc. $HNO_{3}$ and conc. $HCl$ in the ratio 1 : 3

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