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Which of the following oxides are amphot...

Which of the following oxides are amphoteric .
(1) BeO
(2) SnO
(3) ZnO
(4) `Al_2O_3`

A

BeO

B

SnO

C

ZnO

D

`Al_2O_3`

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The correct Answer is:
A
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PATHFINDER-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES-QUESTION BANK
  1. The order of first electron affinity of O , S and Se is

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  2. Which of the following statement is /are correct?

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  3. Which of the following oxides are amphoteric . (1) BeO (2) SnO (3) Z...

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  4. Pd has exceptional valence shell electronic configuration 4d^(10) 5s^0...

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  5. The electronic configuration of an element is 1s^2 2s^2 2p^6 3s^2 3p^4...

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  6. A M(2+) ion derived from a metal in the first transition metal series ...

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  7. Which is correct in the following:

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  8. The correct order of atomic size of C N P S follows the order

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  9. Match the following columns

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  10. The ionic radii of N^(3-) , O^(2-) and F^- are respectively given by

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  11. In which of the following compounds maganese shows maximum radius

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  12. Arrange in the increasing order of atomic radii of the following eleme...

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  13. The correct order of size would be

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  14. Atomic radii of fluorine and Neon in Angstrom units are given by

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  15. Which of the following has largest radius

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  16. Arrange the elements in increasing order of atomic radius Na , Rb , K ...

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  17. Consider the isoelectronic series: K^+ , S^(2-) , Cl^- andCa^(2+) the ...

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  18. Highest size will be of

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  19. Ionization potential of Na would be numerically the same as

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  20. The IP1 , IP2 , IP3 , IP4 and IP5 of an element are 7.1 , 14.3 , 34.5 ...

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