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Which is amphoteric in nature ?...

Which is amphoteric in nature ?

A

`Al_(2)O_(3)`

B

`CaO`

C

`ZnO`

D

Both (1) & (2)

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The correct Answer is:
D
Oxides of Al, Be, Sn, Pb, Sb, Bi and Zn are amphoteric.
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BANSAL-TEST PAPERS-CHEMISTRY
  1. Which of the following has highest bond dissociation energy ?

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  2. Which is least acidic ?

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  3. Which is amphoteric in nature ?

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  4. Which of the following has mu = 0 dipole moment ?

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  5. Which of the following has intramolecular H-bonding ?

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  6. Which is correct order of electron affinity ?

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  7. Which of the following orbital is not possible

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  8. Choose incorrect order of ionic radii ?

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  9. What is the basicity of phosphorus acid ?

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  10. How many number of P - O - P linkage are present in tetrapolyphosphori...

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  11. The incorrect set of the formal charge on different atoms in the Lewis...

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  12. Select the incorrect statements from the following:

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  13. Chose the correct bond angle order -

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  14. Given the following information : A^(-)(g) rarr A^(2+) (g) + 3e^(-) ...

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  15. In follwing compound which has minimum ionic radius of maganese is :

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  16. Calculate total number of electron present in Cr having n + l + m = 6

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  17. Intra molecular H-bondign present in which of the following molecule.

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  18. Consider the compound given below H(2)C = CH - CH = CH - CH(2) - OH ...

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  19. What is the difference in steric number (bp + lp) of anionic and catio...

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  20. In which of the following species the bonds are non-directonal ?

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