Chemistry

Problem

Which of the following mixtures of ions in solution can be separated by using

\text{NaOH}

solution? a.

\text{Fe}^{3+}

and

\text{Pb}^{2+}

\text{Pb}^{2+}

and

\text{Sn}^{2+}

\text{Zn}^{2+}

and

\text{Sn}^{2+}

\text{Al}^{3+}

and

\text{Cu}^{2+}