Which of the following pairs of sulphides are insoluble in dilute ?

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

Problem

Which of the following pairs of sulphides are insoluble in dilute

\text{HCl}

? (1)

\text{CoS}

and

\text{NiS}

(2)

\text{CoS}

and

\text{MnS}

(3)

\text{NiS}

and

\text{MnS}

(4)

\text{NiS}

and

\text{ZnS}