And can be distinguished by :

CHEMISTRY · Single correct · ICSE · Chemistry · Analytical Chemistry · Analytical Chemistry

Problem

\text{Fe}^{2+}

and

\text{Fe}^{3+}

can be distinguished by : (1)

\text{K}_3[\text{Fe}(\text{CN})_6]

(2)

\text{K}_4[\text{Fe}(\text{CN})_6]

(3) KSCN (4) All are correct