Q. 6.48 - An Introduction to General, Organic, and Biological Chemistry

Question

Name each of the following molecular compounds:

a. $C{S}_2$

b. $P_2{O}_5$

c. $Si{O}_2$

d. $PC{l}_3$

e. $CO$

Step-by-Step Solution

Answer

(a) The molecular compound is carbon disulfide

(b) The molecular compound is Phosphorous pentoxide

(c) The molecular compound is silicon dioxide

(d) The molecular compound is phosphorous trichloride

(e) The molecular compound is carbon monoxide

Part (a) Step 1: Given information

We need to find the molecular name of $C{S}_2$

Part (a) Step 2: Explanation

We know that,

The first nonmetal is $C$ i.e. carbon

And second nonmetal $S$ i.e. sulfide

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

Therefore, the compound is, carbon disulfide  

Part (b) Step 1: Given information

We need to find the molecular name of $P_2{O}_5$

Part (b) Step 2: Explanation

We know that,

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

And second nonmetal $O$ i.e. oxide

As the no. of atoms or subscript of oxide  atom is $5$

Therefore, the compound is, Phosphorous pentoxide 

Part (c) Step 1: Given information

We need to find the molecular name of $Si{O}_2$

Part (c) Step 2: Explanation

We know that,

The first nonmetal is $Si$ i.e. silicon

And second nonmetal $O$ i.e. oxide

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

Therefore, the compound is, silicon dioxide

Part (d) Step 1: Given information

We need to find the molecular name of $PC{l}_3$

Part (d) Step 2: Explanation

We know that,

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

And second nonmetal $Cl$  i.e. chloride

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

Therefore, the compound is, phosphorous trichloride

Part (e) Step 1: Given information

We need to find the molecular name of $CO$

Part (e) Step 2: Explanation

We know that,

The first nonmetal is $C$ i.e. carbon

And second nonmetal $O$ i.e. oxide

Therefore, the compound is, carbon monoxide