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Question

Which one of the following oxides of manganese is amphoteric?

A
MnO
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B
MnO2
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C
Mn2O3
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D
Mn2O7
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Solution

The correct option is B MnO2
Among the given oxides of manganese, i.e., MnO, MnO2, Mn2O3 and Mn2O7, MnO2 is amphoteric.
Hence, option B is the correct answer.

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