Find number of basic radicals among the following cations

CHEMISTRY · Subjective · A Level · Chemistry · Transition metals and their chemistry · Transition metals and their chemistry

Problem

Find number of basic radicals among the following cations, which can form soluble complex on adding excess of

\text{NH}_3

solution :

\text{Cd}^{2+}

(aq.),

\text{Pb}^{2+}

(aq.),

\text{Ni}^{2+}

(aq.),

\text{Mn}^{2+}

(aq.),

\text{Zn}^{2+}

(aq.),

\text{Ag}^+

(aq.),

\text{Hg}^{2+}

(aq.),

\text{Fe}^{3+}

(aq.),

\text{Mg}^{2+}

(aq.)