Question

2
Four beakers were taken and marked A, B, C and D respectively. 200 ml of solution
of Al,(SO)4 in water, CaSO4 in water, FeSO4 in water and CuSO4 in water was filled
in the beakers A, B, C and D respectively. Clean piece of metal zinc was placed in
each solution and kept undisturbed for two hours.
(1) What color change would you observe in beaker D?
(2) (ii) Arrange the metal Zn, Al, Ca, Fe, and Cu in the order of decreasing
reactivity.​

Answer 1

Answer:

zinc , iron and copper are less active than aluminum