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Borax is written as...

Borax is written as

A

`Na_(2)[B_(4)O_(5)(OH)_(4)]*8H_(2)O`

B

`Na_(2)B_(4)(OH)_(7)O_(2)*3H_(2)O`

C

`Na_(2)OB_(4)O_(8)H_(2)`

D

`Na_(2)B_(4)O_(17)H_(2)O`

Text Solution

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The correct Answer is:
A
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AAKASH INSTITUTE-THE P-BLOCK ELEMENTS-Assignment Section-B)
  1. Boron halides behave as Lewis acid because of their nature.

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  2. In graphite, electrons are

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  3. From B(2)H(6), all the following can be prepared except

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  4. Thermodynamically the most stable form of carbon is

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  5. Specify the coordination geometry around and the hybridisation of N an...

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  6. Carbondioxide is used for extinguishing fire because

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  7. Boron nitride on reacting with steam gives

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  8. Borax is written as

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  9. Write the chemical reactions of P(4)O(6) with cold and hot water.

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  10. Which of following trihalides of nitrogen behaves as the weakest base?

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  11. Arrange the following molecules in the increasing order of bond angle....

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  12. The colour of I(2) is violet because it

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  13. (NH(4))(2)Cr(2)O(7) on heating gives a gas which is also given by :

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  14. K(2)Cr(2)O(7)+SO(2) overset(H+)toproducts the oxidation state of chr...

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  15. N(2)O(4) is a mixed anhydride because it

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  16. The percentage of available chlorine in a commercial sampleof bleachin...

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  17. A certain compound when burned gives three oxides. The first turned li...

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  18. Which of the following gas has highest solubility in water?

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  19. Which of the following compound is paramagnetic?

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  20. The strongest oxidising agent among the following is

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