In this experiment an insoluble metal oxide is reacted with a dilute acid to form a soluble salt. Copper(II) oxide, a black solid, and colourless dilute sulfuric acid react to produce copper(II) sulfate, giving a characteristic blue colour to the solution. From this solution, blue copper(II) sulfate pentahydrate crystals can be obtained. read more
Reacting copper(II) oxide with sulfuric acid. In this experiment an insoluble metal oxide is reacted with a diluteacid to form a soluble salt . Copper(II) oxide, a black solid, and colourless dilute sulfuric acid react to produce copper(II) sulfate , giving a characteristic blue colour to the solution. read more
Copper does not react with dilute sulphuric acid as its reduction potential is higher than that of hydrogen. Copper does not displace hydrogen from non-oxidising acids like HCl or dilute H2SO4. But, concentrated sulphuric acid is an oxidising agent. read more