Chapter 18, Problem 42R

To determine

To Choose: The correct option.

Answer to Problem 42R

The correct option is (D).

Explanation of Solution

Introduction:

A Covalent compound is formed by the sharing of electrons between two non-metals. The two atoms share their electrons with each other in order to complete their octet.

Sodium chloride contains sodium and chloride atoms. Sodium is metal and Chloride is a nonmetal. Thus, the bond formed between metal and nonmetal is an ionic bond. Hence, the option (A) is not correct.

Calcium Fluoride contains calcium and a fluorine atom. Calcium is an alkaline earth metal and fluorine is a nonmetal. Thus, the bond form between calcium and fluoride is an ionic bond. Hence, option (B) is not correct.

Calcium chloride contains calcium and chlorine atom. Calcium is an alkaline earth metal and chlorine is a nonmetal. Thus, bond form between calcium and chlorine is an ionic bond. Hence, option(C) is not correct.

Sulfur dioxide contains sulfur and oxygen atoms. Both sulfur and oxygen are nonmetals. Thus, they share electrons present in their outermost shell with each other and form Covalent Bond.

Therefore, the correct option is (D).

Conclusion:

Hence, sulfur dioxide is an example of a covalent compound.