A student takes copper aluminium iron and zinc metals

Last updated: 7/4/2023

A student takes copper aluminium iron and zinc metals separately in four test tubes labelled as I II III and IV respectively He adds 10 mL of freshly prepared ferrous sulphate solution to each test tube and observes the colour of the metal residue in each case He would observe a grey residue in the test tubes 1 II III IV Q a I and II b I and III c II and III I and IV Cu Al Fe Zn the colutions in heaker I II III and IV After