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Aqueous solution of borax reacts with \( 2 \mathrm{~mol} \) of acids. This is because of -
(A) Formation of \( 2 \mathrm{~mol} \) of \( \mathrm{B}(\mathrm{OH})_{3} \) only.
\( \mathrm{P} \)
(B) Formation of \( 2 \mathrm{~mol} \) of \( \left[\mathrm{B}(\mathrm{OH})_{4}\right]^{-} \)only.
W
(C) Formation of \( 1 \mathrm{~mol} \) each of \( \mathrm{B}(\mathrm{OH})_{3} \) and \( \left[\mathrm{B}(\mathrm{OH})_{4}\right]^{-} \)
(D) Formation of \( 2 \mathrm{~mol} \) each of \( \left[\mathrm{B}(\mathrm{OH})_{4}\right]^{-} \)and \( \mathrm{B}(\mathrm{OH})_{3} \), of which only \( \left[\mathrm{B}(\mathrm{OH})_{4}\right]^{-} \)reacts with acid
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