JAMB - Chemistry (2005 - No. 9)
What is the correct IUPAC name for NO\(_{2} ^{-}\)?
Dioxonitrate (IV) ion
Trioxonitrate (III) ion
Trioxonitrate (IV) ion
Dioxonitrate (III) ion
Vysvětlení
NO\(_{2} ^{-}\) = - 1
NO\(_{2}\) = - 1
N + (-2 x 2) = - 1
N - 4 = - 1
N = - 1 + 4 = + 3
IUPAC name of NO\(_{2} ^{-}\) is dioxonitrate(III) ion