Question

Consider the following reactions:

B + ZnSO4  No reaction

A + ZnSO4  No reaction

B + FeSO4  BSO4 + Fe

A + CuSO4  ASO4 + Cu

A + FeSO4  No reaction

The correct order of reactivities of the given metals is

(1) A < Cu < B < Fe < Zn

(2) Cu < A < B < Fe < Zn

(3) Cu < Fe < A < B < Zn

(4) Cu < A < Fe < B < ZnConsider the following reactions:

B + ZnSO4  No reaction

A + ZnSO4  No reaction

B + FeSO4  BSO4 + Fe

A + CuSO4  ASO4 + Cu

A + FeSO4  No reaction

The correct order of reactivities of the given metals is

(1) A < Cu < B < Fe < Zn

(2) Cu < A < B < Fe < Zn

(3) Cu < Fe < A < B < Zn

(4) Cu < A < Fe < B < Zn​

Answer 1

( 4 ) kaa answer right hai

Answer 2

hey mate your answer is ....

for 1st ...

• B and A both can not displace Zn so Zn is most reactive
• B can displace iron so B is more reactive than iron therefore B is 2nd most reactive element
• as A can not displace Fe so fe is 3rd but it can displace copper so cu is 4rd most reactive element
• and hence copper is least reactive

4 ) Zn>B>Fe>A>Cu