24. Four beakers were taken and marked A, B, C and D respectively. 200 ml of solution of Al,(So,), in water, CaSo, in water, FeSO, in water and CuSO, 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? (ii) Arrange the metal Zn, Al, Ca, Fe, and Cu in the order of decreasing reactivity.
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zinc, iron and copper are less active than aluminum
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???wath si theis????? !??
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