Chapter 4, Problem 4.68QP

(a)

Interpretation Introduction

Interpretation:

Whether the given ionic compound ${\text{PbCO}}_{\text{3}}$ will form a precipitate in water or not has to be given.

Concept Introduction:

Precipitation reaction is a reaction in which any chemical change in a solution results in giving one or more insoluble products.  The insoluble product is called as precipitate.

The compounds that can either form precipitate or it gets soluble can be identified by the information given in figure 1.

Figure 1

(b)

Interpretation Introduction

Interpretation:

Whether the given ionic compound ${\text{Na}}_{\text{2}}{\text{CO}}_{\text{3}}$ will form a precipitate in water or not has to be given.

Concept Introduction:

Refer part (a)

(c)

Interpretation Introduction

Interpretation:

Whether the given ionic compound ${\text{Pb(NO}}_{\text{3}}{\text{)}}_{\text{2}}$ will form a precipitate in water or not has to be given.

Concept Introduction:

Refer part (a)

(d)

Interpretation Introduction

Interpretation:

Whether the given ionic compound ${\text{Na}}_{\text{2}}{\text{NO}}_{\text{3}}$ will form a precipitate in water or not has to be given.

Concept Introduction:

Refer part (a).