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18 of 2018 of 20 Items

17:12

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Question
K2O

Use IUPAC nomenclature rules to properly identify this compound.
Responses
A potassium oxidepotassium oxide
B dipotassium oxidedipotassium oxide
C potassium (I) oxidepotassium (I) oxide
D dipotassium monoxide

1 answer

The correct IUPAC nomenclature for K2O is D: dipotassium monoxide.

In this compound, there are two potassium (K) atoms and one oxygen (O) atom. According to IUPAC nomenclature, the prefix "di-" indicates two potassium atoms, and "mon-" indicates one oxygen atom.

While option A (potassium oxide) is a commonly used name, it does not follow the systematic IUPAC naming convention which specifies the number of each type of atom in the compound. Therefore, the most accurate answer is D.

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