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Question

B(OH)3+NaOHNaBO2+Na[B(OH)4]+H2O

How can the reaction above be made to proceed in the forward reaction?


  1. Addition of borax

  2. Addition of cis-1,2-diol

  3. Addition of Na2HPO4

  4. Addition of trans-1,2-diol


Solution

The correct option is B

Addition of cis-1,2-diol


In the reaction,

B(OH)3+NaOHNaBO2+Na[B(OH)4]+H2O

We see that there is an equilibrium. When cis-1,2-diols are added to the reaction flask, it consumes [B(OH)4] and thus drives the reaction in the forward direction.

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