D-And F-Block Elements Ques 459
Question: Which of the following oxides of manganese is amphoteric-
Options:
A) $ MnO_2 $
B) $ Mn_2O_3 $
C) $ Mn_2O_7 $
D) $ MnO $
Show Answer
Answer:
Correct Answer: A
Solution:
The more the oxidation state, the more is the acid character, $ MnO,Mn_2O_3 $ are basic, $ MnO_2 $ is amphoteric and $ Mn_2O_7 $ is acidic.