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Question
Chemistry
The acidic, basic or amphoteric nature of Mn2O7, V2O5 and CrO are respectively
Q. The acidic, basic or amphoteric nature of
M
n
2
O
7
,
V
2
O
5
and
C
r
O
are respectively
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215
CMC Medical
CMC Medical 2013
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A
acidic, amphoteric, basic
B
acidic, acidic, basic
C
basic, amphoteric acidic
D
acidic, basic, basic
Solution:
Acidic character increases with increase in oxidation state.
M
n
2
O
7
−
acidic (Mn = +7)
V
2
O
5
−
amphoteric (V = +5)
C
r
O
−
basic (Cr = +2)