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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_(5),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

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The correct Answer is:
A
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NARAYNA-D BLOCK & TRANSITION ELEMENTS-Level-VI (H.W)
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  2. Which of the following is amphoteric oxide? Mn(2)O(7),CrO(3),Cr(2)O(...

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  3. Interstitial compounds are formed when small atoms are trapped inside ...

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  4. Higher oxidation state of manganese in fluoride is +4 (MnF(4)) but hig...

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  5. Although zirconium belongs to 4d transition series and hafnium to 5d t...

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  6. Although Cr^(3+) and Co^(2+) ions have same number of unpaired electro...

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  7. The aqueous solution of transition metal salt changes colour from pink...

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  8. While Fe^(3+) is stable Mn^(3+) is not stable in acitic solution becau...

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  9. Which of the following transition metal oxides is(normally) neither ac...

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  10. The thermally unstable compounds are

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  11. Which one of the following reactions cannot occur?

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  12. Which of these are liquids at room temperature ?

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  13. The typical acidic oxides are

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  14. The compounds that undergo hydrolysis readily is/are

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  15. Which are the best suitable as coinage metals?

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  16. Paramagnetism is exhibited by :

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  17. In the form of dichromate, Cr(VI) is a strong oxidising agent in acidi...

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  18. The diamagnetic compounds is/are

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  19. The colour of the transition metal ions is due to

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  20. Select the correct statement(s) with respect to oxides and oxoanions o...

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