Which among the following acids is generally used as a first hand test to judge whether a metal is Gold or not?

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Question:Which among the following acids is generally used as a first hand test to judge whether a metal is Gold or not?

1.Sulfuric Acid

2.Nitric Acid

3.Hydrochloric Acid

4.Sulfurous Acid

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  1. Which among the following acids is generally used as a first hand test to judge whether a metal is Gold or not?
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