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In diborane, the two boron atoms are lin...

In diborane, the two boron atoms are linked together by two ............ bonds.

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hydrogen , 3c-2e
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ICSE-SOME P-BLOCK ELEMENTS -FILL IN THE BLANKS TYPE QUESTIONS
  1. Trihalides of boron are .............. compounds and act as Lewis .......

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  2. In borax bead test, copper forms a ............. coloured bead in oxid...

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  3. In diborane, the two boron atoms are linked together by two .............

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  4. Orthoboric acid is a ................. basic acid.

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  5. The purest and the densest variety of carbon is ..........

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  6. Graphite is used as a ......... in atomic reactors.

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  7. The densities of group 13 elements are ........... than those of group...

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  8. The elements of group 13 are ............ electronegative than those o...

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  9. The reluctance of valence shell s-electrons pair to get unpaired and t...

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  10. Fill in the blanks The compounds of Al are predominantly ...............

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  11. The main product obtained on reducing boron trichloride with lithium a...

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  12. In diborane, the two boron atoms are linked together by two .............

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  13. BF3 has a ............ structure.

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  14. B(OH)3 is ……………… in nature.

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  15. Boron shows diagonal relationship with ....................

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  16. The electronic configurations of group 14 elements are of the type ......

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  17. The ability of an element to form long chains or rings by linking its ...

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  18. Due to inert pair effect, the stability of +2 oxidation state increase...

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  19. Trimethylamine molecule is ............ in shape, while the shape of t...

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  20. The compound having the highest bond energy among diatomic molecules i...

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