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Beryllium and aluminimum exhibit many pr...

Beryllium and aluminimum exhibit many properties which are
similar . But, the two elements differ in

A

Exhibiting amphoteric nature of their oxides

B

Forming covalent halides

C

Forming polymeric hydrides

D

Exhibiting maximum covalency in compounds

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The correct Answer is:
D
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AAKASH INSTITUTE ENGLISH-MOCK TEST 5-Example
  1. The correct order of ionic radii of the following species is

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  2. Ammong the following, the element having highest ionization enthalpy a...

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  3. Addition of an electron to a neutral gaseous atom alwayds leads to (i...

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  4. Predict correct statement.

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  5. In which of the following pairs, the ionisation energy of the first sp...

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  6. The number of elements which can be accommodated in the present set-up...

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  7. Correct order of ionisation enthalpy is

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  8. Which of the following is correct for electron gain enthalpy (with -ve...

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  9. An element with atomic number 113 has been discovered.It will belong t...

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  10. In the general electronic configuration (n-2)^f(1-14) (n-1)^d(0-1) ns^...

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  11. Which of the following is a metalloid?

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  12. The X-X bond length is 1.5 Å and Y-Y bond length is 1.48 Å.If electron...

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  13. The common valency shown by the elements of group 15 is/are

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  14. Out of the following elements,which one is the most reactive chemicall...

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  15. What is the covalency of Al in [AlCl(H2O)5]^(2+) ?

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  16. Which of the following oxides is most basic in nature?

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  17. Elements of which block generally show maximum variation in valency?

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  18. In modern periodic table,the basic character of oxides

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  19. Beryllium and aluminimum exhibit many properties which are similar ....

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  20. Which of the following is the Lewis structure of O2 molecule?

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