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Boron has an extremely high melting poin...

Boron has an extremely high melting point because of

A

Small covalent molecule

B

Giant covalent molecule

C

Giant covalent solid

D

Giant ionic molecule

Text Solution

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The correct Answer is:
C
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AAKASH INSTITUTE ENGLISH-THE P-BLOCK ELEMENTS-Assignment Section-A)
  1. How do the Density property vary on moving down the group 13?

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  2. Boron has an extremely high melting point because of

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  3. Which element of group 13 forms covalent compounds only

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  4. On moving down the group, the basic nature of hydroxide of boron famil...

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  5. General oxidation state shown by group 13 elements is

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  6. Which one of the following elements of group 13 can react with alkali ...

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  7. Why does the Lewis acid strength of boron halides follow the order B B...

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  8. Dimer Al(2)Cl(6) is formed because

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  9. When we heat borax strongly then it will yield the following compound

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  10. B(OH)(3) will accept how many OH^(-) ions?

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  11. Boric acid is polymeric due to (a) its acidic nature , (b) the pre...

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  12. Select the incorrect statement for B(2)H(6)

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  13. If diborane each boron has three electrons bonds around each B atom an...

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  14. Which of the following structure is similar to graphite.

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  15. The number of sigma and pi bonds present in inorganic benzene are resp...

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  16. Why are alloys used for making standard resistance coils?

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  17. Which of the following alkali metal does not form alum ?

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  18. Write the general valence shell electronic configuration of group 14 e...

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  19. Tendency of carbon for catenation is because carbon-carbon atoms bond ...

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  20. All elements except carbon have tendency to show maximum covalency of ...

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