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H3BO3 overset(100^@C)to X overset(160^@C...

`H_3BO_3 overset(100^@C)to X overset(160^@C)to Y overset("Red hot")to B_2O_3`, X and Y respectively are:

A

X=metaboric acid, Y=Tetraboric acid

B

X=Borax, Y=Metaboric acid

C

X=Tetraboric acid, Y=Metaboric acid

D

X=Tetraboric acid, Y=Borax

Text Solution

Verified by Experts

The correct Answer is:
A
`H_3BO_3 underset(-H_2O)overset(100^@C)to underset((X))(HBO_2)` (Metaboric acid): `4HBO underset(H_2O)overset(160^@C)to underset((Y))(H_2B_4O_7)` (Tetraboric acid)
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