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Which of the following is amphoteric oxi...

Which of the following is amphoteric oxide ?
`Mn_(2)O_(7), CrO_(3), Cr_(2)O_(3), CrO, V_(2)O_(3), V_(2)O_(4)`

A

`V_(2)O_(5), Cr_(2)O_(3)`

B

`Mn_(2)O_(7), CrO_(3)`

C

`CrO, V_(2)O_(5)`

D

`V_(2)O_(5), V_(2)O_(4)`

Text Solution

Verified by Experts

The correct Answer is:
A
Oxides in the lower oxidation state are basic and those in higher oxidation state are acidic while in intermediate state, they are amphoteric.
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MODERN PUBLICATION-CHEMISTRY OF D-AND F-BLOCK ELEMENTS-Multiple Choice Questions (Level-II)
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  9. The stable oxidation state of Ce (Z = 58) is

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  10. In the reaction : CrO(4)^(2-) + X to Cr(2)O(7)^(2-) X is

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  12. Which of the following statement is not correct ?

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  13. In the standarization of Na(2)S(2)O(3) using K(2)Cr(2)O(7) by iodome...

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  16. IN which of the following pairs, both the ions are coloured in aqueous...

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  17. Which one of the following ions is the most stable in aqueous solution...

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  18. Which of the following ions has a magnetic moment of 5.93 BM ?

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  19. The maximum oxidation state exhibited by actinide ions is :

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  20. Among the oxides Mn(2)O(7) (I), V(2)O(3) (II), V(2)O(5) , (III) CrO (I...

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