Question

Samples of five metals A,B,C,D and E added to the following source solutions has given in the table below. The observations are
recorded as:
Answer the following questions:—

a) Which metal is least reactive ?

b) Which metal is most reactive ?

c) Which of the above solutions can be stored in iron vessels ?

d) Container of which metals can store copper sulphate solution ?

e) Arrange the metals in increasing order of reactivity.​

Answer 1

Answer:

Explanation:

(a) E is most reactive. Because it react with most substances.  

(b) Reddish brown deposit of copper will be formed since displacement has taken place.  

(c) E>B>A>C>D reason: The more it reacts the more reactive it is. Just count a number of displacements a metal will give.  

(d) Container of metal D can be used for this purpose as it does not react with any of them.  

(e) Aluminium and magnesium sulphates can be used to store in any container because the react with none