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Borax is actually made of two tetrahedra...

Borax is actually made of two tetrahedra and two triangular units joined together and should be written as
`Na_(2)[B_(4)O_(5)(OH)_(4)].8H_(2)O`.
Consider the following statements about borax :
A : Each boron atom has four `B-O` bonds.
B : Each boron atom has three `B-O` bonds.
C : Two boron atoms have four `B-O` bonds while other two have three `B-O` bonds.
D : Each boron atom has one-OH group.
Select correct statement (s) :

A

a,b

B

b,c

C

c,d

D

a,c

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

  • Borax is actually made of two tetrahedral and tetrahedral and two triangular units joined together and should be written as Na_(2)[B_(4)O_(5)(OH)_(4)].8H_(2)O Consider following statements about borax: (1) Each boron atom has four B - O bonds (2) Each boron atom has three B - O bonds (3) Two boron atoms have four B - O bonds while other two have three B - O bonds (4) Each boron atom has one -OH group Select correct statement(s) :

    A
    `1,2`
    B
    `2,3`
    C
    `3,4`
    D
    `1,3`

  • Borax is actually made of two tetrahedra and two triangular units joined together and should be written as Na_(2)[B_(4)O_(5)(OH)_(4)].8H_(2)O . Select the correct statement (s) :

    A
    Borax is used as a buffer.
    B
    `1 M` borax solution reacts with equal volumes of `2 M HCI` solution.
    C
    Titration of borax can be done by using methyl orange as the indicator.
    D
    Coloured bead obtained in borax-bead test contains metaborate.

  • Borax is actually made of two tetrahedral and tetrahedral and two triangular units joined together and should be written as Na_(2)[B_(4)O_(5)(OH)_(4)].8H_(2)O Select incorrect statement:

    A
    Borax is used as a buffe
    B
    1M borax solution reacts with equal volumes of 2M HCl solution
    C
    Titration of borax can be made using methyl orange asd the indicator
    D
    In borax all boron atoms are `sp^(3)` hybridised

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