Question

Name each of the following molecular compounds:

a. $PB{r}_3$

b. $C{l}_{2}O$

c. $CB{r}_4$

d. $HF$

e.$N{F}_3$

Short answer

(a) The molecular compound is phosphorous tribromide

(b) The molecular compound is dichlorine oxide

(c) The molecular compound is carbon tetrabromide

(d) The molecular compound is hydrogen fluoride

(e) The molecular compound is nitrogen trifuoride

Step-by-step solution

Part (a) Step 1: Given information

We need to find the molecular name of$PB{r}_3$

Part (a) Step 2: Explanation

We know that,

The first nonmetal is $P$i.e. phosphorous

And second nonmetal $Br$i.e. bromide

As the no. of atoms or subscript of bromine atom is 3

Therefore, the compound is, phosphorous tribromide

Part (b) Step 1: Given information 

We need to find the molecular name of$C{l}_{2}O$

Part (b) Step 2: Explanation 

We know that,

The first nonmetal is $Cl$i.e. Chlorine

And second nonmetal $O$i.e. oxide

As the no. of atoms or subscript of chlorine atom is $2$

Therefore, the compound is, dichlorine oxide

Part (c) Step 1: Given information 

We need to find the molecular name of$CB{r}_4$

Part (c) Step 2: Explanation 

We know that,

The first nonmetal is $C$i.e. carbon

And second nonmetal $Br$i.e. bromide

As the no. of atoms or subscript of bromine atom is $4$

Therefore, the compound is, carbon tetrabromide

Part (d) Step 1: Given information 

We need to find the molecular name of $HF$

Part (d) Step 2: Explanation 

We know that,

The first nonmetal is $H$i.e. hydrogen

And second nonmetal $F$i.e. fluoride

Therefore, the compound is, hydrogen fluoride

Part (e) Step 1: Given information 

We need to find the molecular name of $N{F}_3$

Part (e) Step 2: Explanation 

We know that,

The first nonmetal is $N$i.e. nitrogen

And second nonmetal $F$i.e. fluoride

As the no. of atoms or subscript of fluoride atom is$3$

Therefore, the compound is, phosphorous tribromide