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Na(2)B(4)O(7).10H(2)O overset(conc. HCl)...

`Na_(2)B_(4)O_(7).10H_(2)O overset(conc. HCl)rarr A overset(160^(@)C)rarr B`. Compound 'B' is

A

`H_(2)B_(4)O_(7)`

B

`B_(2)O_(3)`

C

`H_(3)BO_(3)`

D

`HBO_(2)`

Text Solution

Verified by Experts

The correct Answer is:
A
`Na_(2)B_(4)O_(7).10H_(2)O overset(" conc. HCl ")rarr H_(3)BO_(3) overset(100^(@)C)rarr HBO_(2)overset(160^(@)C)rarr underset("tetraboric acid")(H_(2)B_(4)O_(7))`
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