passwella.
Menu

JAMB Chemistry 2005 Question 9

Question 9

Chemical Formulae and Equations

What is the correct IUPAC name for NO2−?

  1. A.Dioxonitrate (IV) ion.
  2. B.Trioxonitrate (III) ion
  3. C.Trioxonitrate (IV) ion
  4. D.Dioxonitrate (III) ion
Show the answer and explanation

Answer: D (Dioxonitrate (III) ion)

Explanation

NO2− has two oxygens (dioxo) and nitrogen is +3 (x − 4 = −1), so it is dioxonitrate(III) ion.