Chapter 18, Problem 39R

To determine

To Choose: The correct option.

Answer to Problem 39R

The correct option is (B).

Explanation of Solution

Introduction:

Binary compounds are those which are made up of two different atoms.

O₂is made up of 2 atoms of oxygen. As it does not comprise any other elements; it is not a binary compound. Hence, the option (A) is not correct.

${\text{H}}_{\text{2}}{\text{SO}}_{\text{4}}$ is made up of three kinds of elements that is hydrogen, oxygen, and sulfur. Hence it is a polyatomic compound. Hence, option(C) is not correct.

$\text{Cu}{\left({\text{NO}}_{\text{3}}\right)}_{\text{2}}$ is a copper Nitrate that is formed of copper, nitrogen, and oxygen, as more than two types of atoms are used in making copper nitrate, hence it is a Polyatomic Compound. Hence, the option (D) is not correct.

NaF is made up of sodium and fluorine atoms. As it is comprised of only 2 types of atoms, it is a binary compound.

Therefore, the correct option is (B).

Conclusion:

Hence, the binary compound is NaF.