Chapter 8, Problem 5STP

Interpretation Introduction

Interpretation :

Correct balanced complete ionic equation must be chosen for the reaction of an aqueous solution of lead (II) nitrate with an aqueous solution of potassium chloride.

Concept Introduction :

Lead nitrate reacts with potassium chloride to form the precipitate of lead chloride and aqueous potassium nitrate solution.

Answer to Problem 5STP

Correct answer: Option D is correct.

Explanation of Solution

Reason for correct option: Option D is correct because in the reaction of lead (II) nitrate and potassium chloride solution a precipitate of lead chloride is produced along with aqueous solution of potassium nitrate.

  ${\text{Pb}}^{\text{2+}}{\text{(aq)+2NO}}_{\text{3}}{}^{\text{-}}{\text{(aq)+2K}}^{\text{+}}{\text{(aq)+2Cl}}^{\text{-}}\text{(aq)}\to {\text{PbCl}}_{\text{2}}{\text{(s)+2K}}^{\text{+}}{\text{(aq)+2NO}}_{\text{3}}{}^{\text{-}}\text{(aq)}\text{.}$

Conclusion

Reasons for incorrect options: Option A is incorrect as it is not an ionic equation rather it is a molecular equation.

Option B is incorrect as PbCl₂ is insoluble salt.

Option C is incorrect as KNO₃ is a soluble salt.