JEE Main & Advanced Chemistry Chemical Bonding and Molecular Structure / रासायनिक आबंधन एवं आणविक संरचना Question Bank Covalent bonding

  • question_answer
    Among \[Ca{{H}_{2}},N{{H}_{3}},NaH\] and \[{{B}_{2}}{{H}_{6}}\], which are covalent hydride                                    [Orissa JEE 2005]

    A)                 \[N{{H}_{3}}\ \text{and}\ {{\text{B}}_{\text{2}}}{{H}_{6}}\]        

    B)                 \[NaH\ \text{and}\ \text{Ca}{{\text{H}}_{\text{2}}}\]

    C)                 NaH  and \[N{{H}_{3}}\]               

    D)                 \[Ca{{H}_{2}}\] and \[{{B}_{2}}{{H}_{6}}\]

    Correct Answer: A

    Solution :

                    Among these, NaH  and \[Ca{{H}_{2}}\] are ionic hydrides and \[{{B}_{2}}{{H}_{6}}\] and \[N{{H}_{3}}\] are covalent hydrides.


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