Eduprobe
Question:
The option(s) with only amphoteric oxides is (are):
Cr2O3,CrO,SnO,PbO
Cr2O3,BeO,SnO,SnO2
ZnO,Al2O3,PbO,PbO2
NO,B2O3,PbO,SnO2
Solution:
The options with only amphoteric oxides are Cr2O3, BeO, SnO, SnO2 and ZnO, Al2O3, PbO, PbO2. However, B2O3 is an acidic oxide, CrO is a basic oxide, and NO is neutral. Note: Amphoteric oxides react with acids as well as bases.