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Q.

Is it true that aqua regia can dissolve gold?


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a

True

b

False  

answer is A.

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Detailed Solution

The above statement is true.
Aqua regia is a freshly prepared mixture of concentrated hydrochloric acid and concentrated nitric acid in the ratio of 3:1. It can dissolve gold. It is a highly corrosive liquid. Although gold is typically an inert metal, the unique action of nitric and hydrochloric acid causes it to dissolve in aqua regia. Aqua regia is a mixture of concentrated nitric and hydrochloric acids, usually one part nitric acid to three parts hydrochloric acid by volume.
 
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