Question

Metals X and Y are above and below hydrogen in metallic activity series respectively.
XSO, and YSO, are salts of X and Y.
If X and Y are added to the aqueous solutions of YSO4 and XSOs respectively, then
which of the following chemical reactions is not possible? Explain with reason(s).
X + YSO.
XSO4 + Y
XSO. + Y

X+YSO4​

Answer 1

Explanation:

Given -

◕ Metal X and Y are above and below the Hydrogen in metallic activity series respectively.

◕ XSO4 and YSO4 are salts of X and Y.

◕ X + YSO4 → XSO4 + Y

◕ Y + XSO4 → YSO4 + X

To Find -

➳ Which of the following chemical equation isn't possible? With Reason.

As we know that :-

✪ In metallic reactivity series Lead(Pb) is placed above Hydrogen and Copper(Cu) is placed below hydrogen.

Then,

✪ The salt of X is PbSO4 and Y is CuSO4

Now,

◕ Y + XSO4 → YSO4 + X

It is not possible because Y is least reactive than X. So, Y can't displace X from XSO4.

Hence,

This reaction isn't possible.