Multiple Choice
What is the correct name for the molecular compound CO?
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3. Chemical Reactions
Naming Molecular Compounds
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What is the correct name for the molecular compound with the formula SO?
A
Sulfur oxide
B
Sulfoxide
C
Sulfur dioxide
D
Sulfur monoxide
Verified step by step guidance1
Identify the elements present in the molecular formula SO: sulfur (S) and oxygen (O).
Recognize that this is a binary molecular compound composed of two nonmetals.
Recall the naming convention for binary molecular compounds: use prefixes to indicate the number of atoms of each element (mono-, di-, tri-, etc.), except that the prefix 'mono-' is often omitted for the first element.
Apply the prefixes to the elements: since there is one sulfur atom and one oxygen atom, the name becomes 'sulfur monoxide' (not 'sulfur oxide' or 'sulfur dioxide' which imply different numbers of oxygen atoms).
Confirm that 'sulfur monoxide' correctly reflects the formula SO, where 'mono-' indicates one oxygen atom bonded to sulfur.
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