Which of the following aqueous solution of cation(s) give(s) white ppt

CHEMISTRY · Single correct · GCSE · Chemistry · Chemical Analysis · Chemical Analysis

Problem

Which of the following aqueous solution of cation(s) give(s) white ppt. with NaOH and

\text{NH}_4\text{OH}

solution and formed ppt. is/are further completely dissolved in one of the excess reagent? (1)

\text{Cd}^{2+}

(2)

\text{Cr}^{3+}

(3)

\text{Sn}^{2+}

(4)

\text{Bi}^{3+}