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Be and Al exhibit many properties which ...

`Be` and `Al` exhibit many properties which are similar. But the two elements differ in

A

Forming covalent halides

B

Forming polymeric hydrides

C

Exhibiting maximum covalency in compounds

D

Exhibiting amphoteric nature in their oxides

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Verified by Experts

The correct Answer is:
C
Beryllium has the valency of +2 while alumium exhibits its valency as `+3`.
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A2Z-CLASSIFICATION OF ELEMENTS AND PERIODICITY OF PROPERTIES-Section D - Chapter End Test
  1. Which is the correct order of ionic sizes (At, No : Ce=58,Sn=50,Yb=70 ...

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  2. A sudden large jump between the values of second and third ionisation ...

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  3. Which element having the following electronic configuration has minimu...

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  4. Arrange F,Cl,O,N in the decreasing order of electronegativy

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  5. Two elements whose electronegativities are 1.2 and 3.0 the bond formed...

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  6. Among Al(2)O,SiO(2),P(2)O(3) and So(2) the correct order of acid stren...

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  7. The order in which the following oxides are arranged according to decr...

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  8. Be and Al exhibit many properties which are similar. But the two eleme...

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  9. The order of magnitude of ionic radii of ions Na^(+),Mh^(2+),Al^(3+) a...

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  10. The order of the magnitude of first ionisation potentials of Be,B,N an...

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  11. Which of the following transitions involves maximum amount of energy?

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  12. Mg and Li are similar in their properties due to

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  13. Which among the following elements have the lowest value of IE(1)?

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  14. The first ionisatin potential is maximum for

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  15. Which of the following has the highest ionic radius?

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  16. Ionic radii are

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  17. The most common oxidation states of cerium are

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  18. Assertion: The first ionisation energy of Be is greater than that of B...

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  19. Assertion: Shielding effect increases as we go down the group. Reaso...

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  20. Assertion: Ionisation potential across the period is NaltAlltMgltSi. ...

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