A test that is conclusive of the value or success of something, derived from the original use of nitric acid as a test for gold.
Gold is tested against Nitric Acid for being soluble , if it does not dissolve then it is tested against nitro-hydrochloric acid and if it gets dissolved then it is gold.
Gold is tested against Nitric Acid for being soluble , if it does not dissolve then it is tested against nitro-hydrochloric acid and if it gets dissolved then it is gold.
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