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3. Perform an acid test: An acid test can be performed under guidance, where you can test the gold with nitric acid to check its purity. 4. Colour test: The yellow metal stays yellow always, it ...
3. Perform an acid test: An acid test can be performed under guidance, where you can test the gold with nitric acid to check its purity. 4. Colour test: The yellow metal stays yellow always, it ...
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