ExamPlay Light Logo
Se connecter

JAMB - Chemistry (1998 - No. 25)

The oxide that remains unchanged when heated in hydrogen is?
CuO
Fe2O3
PbO2
ZnO

Explication

Zinc oxide doesn't react to hydrogen gas because the reaction is not spontaneous.

Commentaires (0)

Connectez-vous pour commenter
Publicité
BrainBehindX Inc Logo
©2026; Alimenté par BrainBehindX Inc