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Q.

Wrong match is
A)V2O5   B)Cr2O3   C)V2O3   D)MnO   E)Mn2O7  F)CrO   G)CrO3   H)V2O4

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a

D,C, F- Basic

b

G, E – Acidic

c

H- Strongly basic

d

A, B amphoteric

answer is D.

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Detailed Solution

H -V2O4 is amphoteric,dissolving in non oxidizing acids to give the blue vanadyl ion VO2+ and in alkali to give the brown V4O92-

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