Question

Four test tubes marked I, II, III and IV were taken. A piece of zinc metal was placed in test tube I, an iron nail was put in test tube II, copper turnings were put in test tube III and a clean aluminium strip was placed in test tube IV. 20 ml of $A{l}_2(S{O}_4{)}_3$ solution in water was poured in each of the test tubes. No change was observed in any of the test tubes. The correct inference drawn is :

(a) Copper is more reactive than Aluminium.

(b) Zinc is more reactive than Aluminium.

(c) Zinc is more reactive than Copper.

(d) Zinc, Iron and Copper are less reactive than Aluminium.

Answer 1

(d) Zinc, Iron and Copper are less reactive than Aluminium.