A) \[\operatorname{Be}{{\left( OH \right)}_{2}}\]
B) \[\operatorname{Mg}{{\left( OH \right)}_{2}}\]
C) \[\operatorname{B}{{\left( OH \right)}_{3}}\]
D) \[\operatorname{Al}{{\left( OH \right)}_{3}}\]
Correct Answer: C
Solution :
\[\mathbf{B}{{\left( \mathbf{OH} \right)}_{\mathbf{3}}}\] \[\operatorname{B}{{\left( OH \right)}_{3}}\]is weakly acidic. They dissolve in alkalies forming metal borates. \[{{\operatorname{B}}_{2}}{{O}_{3}} \And B{{\left( OH \right)}_{3}} acidic\] \[\operatorname{Al}{{\left( OH \right)}_{3}} is amphoteric\]
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