Ingia
JAMB - Chemistry (1987 - No. 4)
In which of the following pairs of element is allotropy exhibited by each element?
Phosphorus and hydrogen
Oxygen and chlorine
Sulphur and nitrogen
Oxygen and sulphur
Maoni (0)
Ingia Ili Kutoa Maoni
Tangazo
Ruhusu javascript kupakia vizuri ukurasa huu
