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{:(,"Column - I",,"Column - II"),((A),"G...

`{:(,"Column - I",,"Column - II"),((A),"Graphite",(P),"Layered structure"),((B),"Boric acid",(Q),"Delocalization of electrons"),((C ),"Borazole",(R ),"Electrical conductor"),((D),"Boron nitride",(S),"Hydrogen bonds"):}`

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The correct Answer is:
A-PQR, B-PS, C-Q, D-PQ
(A) Graphite `to` layered structure, delocalozation of electron, electrical conductor.
(B) Boric acid `to` layered structure, hydrogen bonds.
(C ) Borazole `to` Delocalization of electrons.
(D) Boron nitride `to` layered structure, delocalization of electron.
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AAKASH SERIES-ELEMENTS OF BORON FAMILY-PRACTICE SHEET (EXERCISE - I) LEVEL - II (ADVANCED)
  1. Ortho boric acid and metaboric acid differ in respect of

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  2. Possible oxidation states of boron family elements are

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  3. Which among the following is acts as reducing agent ?

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  4. Which of the following statement is correct ?

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  5. Which of the following is basic in nature ?

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  6. Which of the following has lowest melting point ?

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  7. Which halides of element of group 13 exist as dimer in vapour state ?

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  8. Which of the following does not exhibit inert pair effect ?

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  9. The heavier members of 13 and 14 groups besides the group oxidation st...

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  10. The heavier members of 13 and 14 groups besides the group oxidation st...

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  11. The heavier members of 13 and 14 groups besides the group oxidation st...

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  12. Boran forms a number of hydrides having the general formulae BnH(n+4) ...

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  13. Boran forms a number of hydrides having the general formulae BnH(n+4) ...

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  14. Boran forms a number of hydrides having the general formulae BnH(n+4) ...

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  15. Boran forms a number of hydrides having the general formulae BnH(n+4) ...

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  16. {:(,"Column - I",,"Column - II"),((A),"Graphite",(P),"Layered structur...

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  17. How many moles of NO(2) are produced when mole of 'B' react with HNO(3...

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  18. How much nitrogen is evolved when one gm of NH(4)Cl is heated with bor...

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  19. Number of hexagonal rings in borax.

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  20. The number of hydrogen bonds that can be formed by each borax acid mol...

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