Borax is actually made of two tetrahedra and two triangular units joined together and should be written as
`Na_(2)[B_(4)O_(5)(OH)_(4)].8H_(2)O`.
Select the correct statement (s) :
A. Borax is used as a buffer.
B. `1 M` borax solution reacts with equal volumes of `2 M HCI` solution.
C. Titration of borax can be done by using methyl orange as the indicator.
D. Coloured bead obtained in borax-bead test contains metaborate.
