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

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Q 2908123008.     The option(s) with only amphoteric oxides is(are)
JEE 2017 Advanced Paper 2

(This question may have multiple correct answers)

A `ZnO, AI_2 O_ 3 , PbO, PbO_2`
B `Cr_2 O _3 , CrO, SnO, PbO`
C `Cr_2 O_3 , BeO, SnO, SnO_2`
D `NO, B_2 O_3 , PbO, SnO_2`

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Solution
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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