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JEE Main & Advanced Chemistry The p-block Elements-II / p-ब्लॉक तत्व-II Question Bank Self Evaluation Test - The p-Block Elements (Group 13 and Group 14)

  • question_answer
    Which of the following hydroxide is acidic?

    A) \[Al{{\left( OH \right)}_{3}}\]       

    B) \[Ca{{\left( OH \right)}_{3}}\]

    C) \[Tl{{\left( OH \right)}_{3}}\]                 

    D) \[B{{\left( OH \right)}_{3}}\]

    Correct Answer: D

    Solution :

    [d] \[B{{\left( OH \right)}_{3}}\] is acid because it can take \[O{{H}^{-}}\]ions. \[{{H}_{3}}B{{O}_{3}}\,or\,B{{(OH)}_{3}}+O{{H}^{-}}\to B(OH)_{4}^{-}\]


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