8
AssignmentMultiple Choice

Nomenclature of Covalent Compounds

Question 8 • *26-27 CFISD TX-Chemistry A CR

What is the IUPAC name for NH3?

Answer
A
ammonia
B
mononitrogen hydride
C
mononitrogen trihydride
D
nitrogen trihydride

Explanation

NH₃ is a binary molecular compound made of nitrogen and hydrogen. In its systematic molecular name, the first element is called nitrogen, and three hydrogen atoms are indicated by the prefix tri-, giving nitrogen trihydride. “Ammonia” is the common name, not the systematic name asked for here.

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