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Formulae of metaborate and borate ions r...

Formulae of metaborate and borate ions respectively are

A

`BO_(3)^(3-) and BO_(2)^(-)`

B

`BO_(2)^(-) and BO_(3)^(3-)`

C

`BO_(2)^(-) and BO_(3)^(-)`

D

`BO_(2)^(2-) and BO_(3)^(3-)`

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The correct Answer is:
B
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AAKASH SERIES-ELEMENTS OF BORON FAMILY-OBJECTIVE EXERCISE - 2
  1. Tau bonds are formed by overlapping of

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  2. Borax bead test is not given by

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  3. H(3)BO(3)overset("Red heat")rarr- X. 'X' in the reaction is

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  4. The hybridisation of boron in borax is

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  5. BCl(3) on hydrolysis forms

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  6. The maximum number of atoms present in the same plane in diborane mole...

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  7. Diborane does not liberate H(2) gas with

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  8. The statements regarding Diborane are i) Diborane contains 2-centred...

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  9. The hybridisation of boron and oxygen atoms in a molecule of boric aci...

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  10. Formulae of metaborate and borate ions respectively are

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  11. Na(2)B(4)O(7)+H(2)Ooverset("Conc. HCl")underset(Delta)rarrNaCl+X Xov...

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  12. Some statements about the structure of diborane are given below (A...

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  13. Hot and concentrated solution of borax is treated with hydrochloric ac...

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  14. What is the nature of aqueous borax solution ?

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  15. An alkali metal hydride (NaH) reacts with diborane in 'A' to give a te...

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  16. The products of the reaction between Ca(2)B(6)O(11) and Na(2)CO(3) are

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  17. In Al(2)Cl(6) the number of covalent and co-ordinate bonds are

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  18. Correct statement regarding B(2)H(6) and Al(2)Cl(6)

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  19. Dimeric aluminium chloride and respective bond lengths are given below

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  20. The aqueous solution of AlCl3 contains Al^(+3) ions because

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