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1. | (i) Concentrated nitric acid is added to copper. | | | | |
2. | (ii) Concentrated sulphuric acid is added to copper sulphate·5 water. | | | | |
3. | (iii) Concentrated hydrochloric acid is added to lead (IV) oxide with warming. (You are not required to say what is happening nor it is necessary to name the products.) | | | | |
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