A) addition of cis 1,2-diol
B) addition of borax
C) addition of trans 1,2-diol
D) addition of \[N{{a}_{2}}HP{{O}_{4}}\]
Correct Answer: A
Solution :
[a] \[{{H}_{3}}B{{O}_{3}}\] acts as weak monobasic Lewis acid. \[B{{\left( OH \right)}_{3}}+NaOH\to Na\left[ B{{\left( OH \right)}_{4}} \right]\] On addition of cis-1, 2-diol in \[{{H}_{3}}B{{O}_{3}}\] solution, acidic strength of \[{{H}_{3}}B{{O}_{3}}\] increases due to chelation effect.You need to login to perform this action.
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