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Na[B(4)O(5)(OH)(4)].8H(2)O is called bor...

`Na[B_(4)O_(5)(OH)_(4)].8H_(2)O` is called borax.
Select correct for borax

A

On heating glassy solid is obtained which is a composition of `NaBO_(2)` and `B_(2)O_(3)`.

B

All borons use `sp^(3)` orbital's for bonding.

C

Its aqueous solution is alkaline in nature

D

Its aqueous solution produce boric acid when treated with conc. `H_(2)SO_(4)`.

Text Solution

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The correct Answer is:
A, C, D
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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 Aqueous solution containing 1 mol of borax reacts with 2 mol of acids. This is because of

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:

Borax is formulated as Na_(2)[B_(4)O_(5)(OH)_(4)].8H_(2)O . On the basis if its sturture answer the followings questions Total number of -OH groups attached to Boron atoms in Borax

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NARAYNA-13TH GROUP ELEMENTS-Multiple Answer
  1. BF(3) on hydrolysis(partial) forms.

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  2. Correct statements are

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  3. Na[B(4)O(5)(OH)(4)].8H(2)O is called borax. Select correct for bora...

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  4. Which of the following exist as polymer in solid state?

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  5. Incorrect statement about Alum

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  6. Ca(2)B(6)O(11) + NA(2)CO(3) overset("Fusted")rarr(A) + (B) + CaCO(3) ...

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  7. Ca(2)B(6)O(11) + NA(2)CO(3) overset("Fusted")rarr(A) + (B) + CaCO(3) ...

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  8. White crystalline compound (X) reacts with water to produce an alkalin...

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  9. White crystalline compound (X) reacts with water to produce an alkalin...

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  10. White crystalline compound (X) reacts with water to produce an alkalin...

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  11. An inorganic compound (A) is white solid and exist as dimer. (A) get...

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  12. An inorganic compound (A) is white solid and exist as dimer. (A) get...

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  13. An inorganic compound (A) is white solid and exist as dimer. (A) get...

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  14. Boron forms a number of hydrides having general formulae B(n)H(n+4) an...

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  15. Boron forms a number of hydrides having general formulae B(n)H(n+4) an...

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  16. Boron forms a number of hydrides having general formulae B(n)H(n+4) an...

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  17. A white precipitate (X) is formed when a mineral of Boron (W) is bolie...

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  18. A white precipitate (X) is formed when a mineral of Boron (W) is bolie...

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  19. x+"Coke" + Cl(2) rarr Q + CO uarr Q + LiAlH(4) rarr Y + LiCl + AlC...

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  20. Which of the following products may be formed by the reaction of dibor...

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