Sarthaks Test
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Which of the following is amphoteric oxide? 

Mn2O7, CrO3, Cr2O3, CrO, V2O5, V2O4

(i) V2O5, Cr2O3

(ii) Mn2O7, CrO3

(iii) CrO, V2O5

(iv) V2O5, V2O4

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Best answer

(i) V2O5, Cr2O3

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