Among the following, which is a binary molecular compound?

A. C02

B. NaCl

C. FeO

D. MgS

B. NaCl sodium chloride

A. CO₂

Explanation:

A binary molecular compound is a compound that is form by 2 nonmetal elements. The nonmetal elements are: B, C, N, O, F, SI, P, S, Cl, As, Se, Br, Te, L, At and H. They are located on the right side of the periodic table with the exception of H that is on the top left because it shares properties with the elements that are on that side of the periodic table. As we can see C and O are two nonmetal elements.