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Question

The option(s) with only amphoteric oxides is(are)

A
Cr2O3, BeO, SnO, SnO2
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B
Cr2O3,CrO,SnO,PbO
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C
NO, B2O3, PbO, SnO2
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D
ZnO, Al2O3, PbO, PbO2
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Solution

The correct options are
A Cr2O3, BeO, SnO, SnO2
D ZnO, Al2O3, PbO, PbO2
Amphoteric oxides are
ZnO, Al2O3, PbO, PbO2, BeO, SnO, SnO2, Cr2O3
NO is a neutral oxide.
CrO is a basic oxide.
B2O3 is an acidic oxide

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