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Multiple Choice
Which of the following substances is a binary molecular compound (composed of two different nonmetals)?
A
B
C
D
Verified step by step guidance
1
Identify what a binary molecular compound is: it is a compound composed of exactly two different nonmetal elements bonded together.
Examine each given substance and determine the types of elements present (metal or nonmetal) and the number of different elements:
For \(\mathrm{N_2O}\), note that it contains nitrogen and oxygen, both nonmetals, and exactly two different elements.
For \(\mathrm{NaCl}\), recognize that sodium (Na) is a metal and chlorine (Cl) is a nonmetal, so this is an ionic compound, not molecular.
For \(\mathrm{FeO}\) and \(\mathrm{CaCO_3}\), identify that iron (Fe) and calcium (Ca) are metals, so these are ionic compounds, not binary molecular compounds.