NEET NEET SOLVED PAPER 2018

  • question_answer
    Among\[\text{Ca}{{\text{H}}_{\text{2}}}\], \[\text{Be}{{\text{H}}_{\text{2}}}\], \[\text{Ba}{{\text{H}}_{\text{2}}}\], the order of ionic character is [NEET - 2018]

    A)  \[\text{Be}{{\text{H}}_{\text{2}}}\text{ Ba}{{\text{H}}_{\text{2}}}\text{ Ca}{{\text{H}}_{\text{2}}}\]

    B)  \[\text{Ca}{{\text{H}}_{\text{2}}}\text{ Be}{{\text{H}}_{\text{2}}}\text{ Ba}{{\text{H}}_{\text{2}}}\]

    C)  \[\text{Be}{{\text{H}}_{\text{2}}}\text{ Ca}{{\text{H}}_{\text{2}}}\text{ Ba}{{\text{H}}_{\text{2}}}\]

    D)  \[\text{Ba}{{\text{H}}_{\text{2}}}\text{ Be}{{\text{H}}_{\text{2}}}\text{ Ca}{{\text{H}}_{\text{2}}}\]

    Correct Answer: C

    Solution :

    or 2nd group hydrides, on moving down the group metallic character of metals increases so ionic character of metal hydride increases.  Hence the option [c] should be correct option.


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