JEE Main & Advanced Chemistry The p-Block Elements-I / p-ब्लॉक के कुछ तत्व-I Question Bank Boron Family

  • question_answer
    Which of the following does not exist in free form [Kerala PMT 2004]

    A) \[B{{F}_{3}}\]

    B) \[BC{{l}_{3}}\]

    C) \[BB{{r}_{3}}\]

    D) \[B{{H}_{3}}\]

    E)   None of these

    Correct Answer: D

    Solution :

    Boron form different hydride of general formula \[{{B}_{n}}{{H}_{n+4}}\]and \[{{B}_{n}}{{H}_{n+6}}\]but \[B{{H}_{3}}\] is unknown.


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