A white solid forms Rinnmann's green in the charcoal cavity test in an oxidising flame

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

Problem

A white solid forms Rinnmann's green in the charcoal cavity test in an oxidising flame. On treatment with dilute

\text{H}_2\text{SO}_4

, this solid produces a gas that turns an acidified dichromate paper green and lead acetate paper black. The white solid is: (1)

\text{PbS}

(2)

\text{ZnSO}_3

(3)

\text{ZnS}

(4)

\text{Na}_2\text{S}