NEET Chemistry Chemical Bonding and Molecular Structure / रासायनिक आबंधन एवं आणविक संरचना NEET PYQ-Chemical Bonding Molecular

  • question_answer
      Which of the two ions from the list given below, have the geometry that is explained by the same hybridisation of orbitals, \[NO_{2}^{-},NO_{3}^{-},\]\[NH_{2}^{-},\]\[NH_{4}^{+},\]\[SC{{N}^{-}}?\]              [AIPMT (S) 2011]

    A)  \[NH_{4}^{-}\] and \[NO_{3}^{-}\]    

    B)  \[SCN_{{}}^{+}\] and \[NO_{2}^{-}\]

    C)  \[NO_{2}^{-}\] and \[NH_{2}^{-}\]

    D)       \[NO_{2}^{-}\] and \[NH_{3}^{-}\]

    Correct Answer: B

    Solution :

    \[NO_{2}^{-}\xrightarrow[{}]{{}}s{{p}^{2}}\]
    \[NO_{3}^{-}\xrightarrow[{}]{{}}s{{p}^{2}}\]
    \[NO_{2}^{-}\xrightarrow[{}]{{}}s{{p}^{2}}\]
    \[NO_{4}^{-}\xrightarrow[{}]{{}}s{{p}^{3}}\]
    \[SC{{N}^{+}}\xrightarrow[{}]{{}}sp\]
    \[\therefore \]\[NO_{2}^{-}\]and \[NO_{3}^{-}\]both have the same hybridization.


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