WAEC - Chemistry (1990 - No. 15)
The compound of copper which is used in electroplating dyeing, printing, wood preservation and as a fungicide is
copper (ll) hydroxide
copper (ll) trioxonitrate (V) pentahydrate
copper (ll) tetraoxosulphate (VI) pentahydrate
copper (ll) oxide
copper (ll) trioxocarbonate (lV)