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OpenStudy (anonymous):
A sample of copper powder was contaminated with zinc dust. Pure copper was obtained from it by heating with excess of acid, filtering and washing. Which of the following acids was used? (A)Dilute nitric acid (B)Concentrated nitric acid (C)Dilute hydrochloric acid (D) Concentrated sulphuric acid
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OpenStudy (anonymous):
I think it will be dil. HCL
OpenStudy (anonymous):
I think it will dil HCL
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