Hydrogen sulphide gas can act as?
A
an oxidizing agent
B
a dehydrating agent
C
a bleaching agent
D
a precipitating agent
Verified Correct Answer: D.
Chemical Principles & Mechanism
When Hydrogen sulphide gas is bubbled through solutions of such metals, the colored sulphides are precipitated.
Hydrogen sulphide is a also strong reducing agent.
Source: WAEC / JAMB / NECO Classroom Archive (Record #4328)