Question

Which oxide of manganese is amphoteric.

• A. $MnO_{2}$
• B. $Mn_{2}O_{3}$
• C. $Mn_{2}O_{7}$
• D. $MnO$

Answer 1

Answer: (A)

$MnO_{2}$

Answer 2

$MnO_{2}$ forms amphoteric oxide due to intermediate oxidation state.