To a small amount of copper oxide in a beaker, when we add dilute hydrochloric acid slowly with stirring,…
To a small amount of copper oxide in a beaker, when we add dilute hydrochloric acid slowly with stirring, the change in the colour of the solution is due to the formation of :
Copper(II) oxide, which is black in colour.
Copper(I) chloride, which is blue in colour.
Copper(II) chloride, which is blue-green in colour.
Copper(I) oxide, which is black in colour.
Solution
Copper (II) chloride, which is blue-green in colour.