NEET Sample Paper NEET Sample Test Paper-27

  • question_answer
    The correct order of bond angles in \[{{H}_{2}}S,\,N{{H}_{3}},B{{F}_{3}}\] and \[Si{{H}_{4}}\] is

    A)  \[{{H}_{2}}S>Si{{H}_{4}}<N{{H}_{3}}<B{{F}_{3}}\]

    B)  \[N{{H}_{3}}<{{H}_{2}}S<Si{{H}_{4}}<B{{F}_{3}}\]

    C)  \[{{H}_{2}}S<N{{H}_{3}}<Si{{H}_{4}}<B{{F}_{3}}\]

    D)  \[{{H}_{2}}S<N{{H}_{3}}<B{{F}_{3}}<Si{{H}_{4}}\]

    Correct Answer: C

    Solution :

    The correct order of bond angle is as:
    \[{{H}_{2}}S\]    < \[N{{H}_{3}}\]     < \[Si{{H}_{4}}\]   < \[B{{F}_{3}}\]
    \[{{92.6}^{o}}\] \[{{107}^{o}}\] \[{{109}^{o}}28'\] \[{{120}^{o}}\]


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