Question

On adding dilute HCI to copper oxide powder, the solution formed is blue – green. Predict the new compound formed which imparts a blue-green colour to the solution.

September 10, 2024

Answer

The new compound formed is copper(II) chloride (CuCl₂), which imparts blue-green colour to the solution.

CuO + 2HCl → CuCl2 + H2O

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