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In crystalline form boron exists as Icos...

In crystalline form boron exists as Icosahedron that has x faces and y atoms linked in this unit. The value of `(x-y) = `

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NARAYNA-13TH GROUP ELEMENTS-Integer Type Question
  1. In the tetranuclear unit of borax, [B(4)O(5)(OH)(4)]^(2-), the numbe...

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  2. In the compound Na(2)[B(4)O(5)(OH)(4)].8H(2)O, it the (i) number of ...

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  3. In crystalline form boron exists as Icosahedron that has x faces and y...

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  4. Number of moles of H(2) formed in the hydrolysis of a mole of borazole...

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  5. Among H(3)BO(3), AlCl(3), BF(3), B(2)H(6), Li[BH(4)], AlF(6)^(3-), [...

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  6. Number of compounds which is/are only acidic: Be(OH)(2), Mg(OH)(2), ...

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  7. The number of B-O bonds in peroxoborate is

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  8. The number of isomers possible for disubstituted borazine with similar...

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  9. Metal M belonging to group 13, M(2)O(3) + "Carbon" overset(Delta)rar...

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  10. H(3)BO(3) overset(100^(0)C)rarrAoverset(160^(0)C)rarrBoverset("Red hea...

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  11. 3B(2)H(6) + 6NH(5) rarr 3Xoverset("heat")rarr2Y + 12H(2). In the anion...

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  12. Among [BeCl(2)](n), [BeH(2)](n), B(2)H(6), Al(2)(CH(3))(6), Al(2)Cl(...

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  13. In K[B(5)O(6)(OH)(4)], the number of tetrahedral units is /are,

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  14. Consider the structure of Al(2)Me(6) compound and find the value of x/...

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  15. How many of the following compounds cleave diborane symmetrically? C...

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  16. The number if electron deficient bonds in Al(2)Cl(6) is :

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  17. Reduction of 117.5 g BCl(3) by H(2) in silent electric discharge prod...

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  18. The corrdination number of Al in the crystalline state of AlCl(3) is

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  19. Tri alkyl aluminium molecules exist as dimers which contains 3c-2e bon...

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  20. Number of 3c-2e bonds (hydrogen bridges) in Be(BH(4))(2) is

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