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Which of the following represents kernit...

Which of the following represents kernite?

A

`Na_(2)B_(4)O_(7) . 2H_(2)O`

B

`Na_(2)B_(4)O_(7) . 5H_(2)O`

C

`Na_(2)B_(4)O_(7) . 10H_(2)O`

D

`Na_(2)B_(4)O_(7) . 9H_(2)O`

Text Solution

Verified by Experts

The correct Answer is:
A
The actual formulation of kernite is `Na_(2)[B_(4)O_(5)(OH)_(4)]` but it is conventionally written as `Na_(2)B_(4)O_(7) . 2H_(2)O`. Compound `2` is called monoclinic borax or jeweler's borax while compound `3` is just called borax.
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