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NEET Sample Paper NEET Sample Test Paper-30

  • question_answer
    The bond angles of \[N{{H}_{3}},NH_{4}^{+}\] and \[NH_{2}^{-}\] are in the order

    A)  \[NH_{2}^{-}>N{{H}_{3}}>NH_{4}^{+}\]

    B)  \[NH_{4}^{+}>N{{H}_{3}}>NH_{2}^{-}\]

    C)  \[N{{H}_{3}}>NH_{2}^{-}>NH_{4}^{+}\]

    D)  \[N{{H}_{3}}>NH_{4}^{+}>NH_{2}^{-}\]

    Correct Answer: B

    Solution :

    The order of bond angles is \[NH_{4}^{+}>N{{H}_{3}}>NH_{2}^{-}\] because \[NH_{4}^{+}\] has no lone pair, \[N{{H}_{3}}\] has one lone pair while \[NH_{2}^{-}\]has two lone pairs to repel the bond pairs.


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