Question

(il) calcium and potassium with Waler
Samples of four metals A, B, C and D were taken and added to ti
following solution one by one. The results obtained have been tabulate
as follows.
Metal
Iron(II) sulphate
Zinc sulphate
Copper(II) sulphate
Displacement
No reaction
Displacement
No reaction
No reaction
No reaction
No reaction
No reaction
No reaction
No reaction
Use the Table above to answer the following questions about met
A, B, C and D.
(i) Which is the most reactive metal?
(ii) What would you observe if B is added to a solution of Copper
sulphate?
(iii) Arrange the metals A, B, C and D in the order of decreasi
reactivity.​

Answer 1

Answer:

Explanation:

Ans.

(i) B is the most reactive metal

(ii)If B is added to a solution of copper (II) sulphate, displacement reaction will take place. Blue colour of copper sulphate will fade and red –brown copper will settle down.

(iii) The decreasing order of reactivity is:

B> A> C >D