Question

On adding dilute HCl to copper oxide powder, the solution formed is blue-green. Write the FORMULA of new compound which imparts blue-green colour to the solution. ​

Answer 1

Answer:

when HCL reacts with copper oxide blue green solution of copper (II) chloride is formed the reaction is as follows HCL + H2O gives CU 12 + H2O (aq) (s) (aq)(l) this is double displacement reaction the soluble copper (II) chloride is blue green in colour and is responsible for the colour of the solution formed