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प्रश्न
Which of the following is amphoteric oxide?
\[\ce{Mn2O7, CrO3, Cr2O3, CrO, V2O5, V2O4}\]
विकल्प
\[\ce{V2O5, Cr2O}\]
\[\ce{Mn2O7, CrO3}\]
\[\ce{CrO, V2O5}\]
\[\ce{V2O5, V2O4}\]
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उत्तर
\[\ce{V2O5, Cr2O}\]
Explanation:
\[\ce{V2O5}\] and \[\ce{Cr2O3}\] are amphoteric oxides because both react with alkalies as well as acids.
Remember: In lower oxides, the basic character is predominant while in higher oxides, the acidic character is predominant.
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संबंधित प्रश्न
Complete the following equations:
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(ii) Write one use of compound (C).
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A transition metal exhibits the highest oxidation state in oxides and fluorides.
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Indicate the step in the preparation of K2Cr2O7 from chromite ore.
Indicate the steps in the preparation of \[\ce{K2Cr2O7}\] from chromite ore.
Indicate the steps in the preparation of \[\ce{K2Cr2O7}\] from chromite ore.
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