Chapter 19, Problem 7STP

To determine

To Choose: The correct option.

Answer to Problem 7STP

The correct option is (A).

Explanation of Solution

Introduction:

A reaction in which one element replaces another element, then it is called as signal displacement reaction.

Reactivity of metal in a single displacement reaction is,

$\text{Li>potassium>Ca>Na>Mn>Zn>Fe>Sn>Lead>Cu>Ag>Platinum>Gold}$ .

Potassium is more active metal than lead. Therefore, potassium will most likely displace lead in chemical reaction.

Conclusion:

Hence, potassium is most likely displaced lead in solution.