Below are four molecules and compounds. Choose the statement below that best describes these four.
A) All of these are ionic compounds.
B) I and II are covalent molecules, whereas III and IV are ionic.
C) II and III are ionic, whereas I and IV are covalent.
D) I, III, and IV and covalent, whereas II is ionic.
E) All of these are covalent molecules.

Question

Below are four molecules and compounds. Choose the statement below that best describes these four. 
A) All of these are ionic compounds. 
B) I and II are covalent molecules, whereas III and IV are ionic. 
C) II and III are ionic, whereas I and IV are covalent. 
D) I, III, and IV and covalent, whereas II is ionic. 
E) All of these are covalent molecules.

Quizplus · Accepted Answer

I and IV are both made up of nonmetals, which generally form covalent molecules. II and III are made up of a metal and a nonmetal, which generally form ionic compounds. Therefore, II and III are ionic and I and IV are covalent.

Below Are Four Molecules and Compounds