CET Karnataka Medical CET - Karnataka Medical Solved Paper-2015

  • question_answer
    One of the following conversion results in the change of hybridization and geometry.

    A)   \[N{{H}_{3}}\]to \[NH_{4}^{+}\] 

    B)  \[{{H}_{2}}O\]to \[{{H}_{3}}{{O}^{+}}\]

    C)  \[C{{H}_{4}}\]to\[{{C}_{2}}{{H}_{6}}~\]  

    D)  \[B{{F}_{3}}\]to \[BF_{4}^{-}\]

    Correct Answer: D

    Solution :

       
    \[\underset{Tetrahedral\,geometry}{\mathop{\underset{s{{p}^{3}}\,\,hybridization}{\mathop{N{{H}_{3}}}}\,}}\,\] \[\xrightarrow{{}}\] \[\underset{Tetrahedral\,geometry}{\mathop{\underset{s{{p}^{3}}\,\,hybridization}{\mathop{NH_{4}^{+}}}\,}}\,\]
    \[\underset{Tetrahedral\,geometry}{\mathop{\underset{s{{p}^{3}}\,\,hybridization\,\,C}{\mathop{C{{H}_{4}}}}\,\,}}\,\] \[\xrightarrow{{}}\] \[\underset{Tetrahedral\,geometry}{\mathop{\underset{s{{p}^{3}}\,\,hybridization\,\,C}{\mathop{{{C}_{2}}{{H}_{6}}}}\,\,}}\,\]
    \[\underset{Tetrahedral\,geometry}{\mathop{\underset{s{{p}^{3}}\,\,hybridization\,\,}{\mathop{{{H}_{2}}O}}\,\,}}\,\] \[\xrightarrow{{}}\] \[\underset{Tetrahedral\,geometry}{\mathop{\underset{s{{p}^{3}}\,\,hybridization\,\,}{\mathop{{{H}_{3}}{{O}^{+}}}}\,\,}}\,\]
    \[\underset{Tetrahedral\,planar\,geometry}{\mathop{\underset{s{{p}^{3}}\,\,hybridization\,\,}{\mathop{B{{F}_{3}}}}\,\,}}\,\] \[\xrightarrow{{}}\] \[\underset{Tetrahedral\,\,geometry}{\mathop{\underset{s{{p}^{3}}\,\,hybridization\,\,}{\mathop{BF_{4}^{-}}}\,\,}}\,\]


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