AMU Medical AMU Solved Paper-2015

  • question_answer
    The correct order of hybridisation of the central atom in the following species\[N{{H}_{3}},{{[PtC{{l}_{4}}]}^{2-}},PC{{l}_{5}}{{[BC{{l}_{4}}]}^{-}}\]

    A)  \[s{{p}^{3}},ds{{p}^{2}},ds{{p}^{3}},s{{p}^{2}}\]               

    B)  \[s{{p}^{3}},ds{{p}^{2}},s{{p}^{3}},s{{p}^{3}}\]

    C)  \[s{{p}^{3}},ds{{p}^{2}},ds{{p}^{3}},s{{p}^{3}}\]               

    D)  \[s{{p}^{3}},s{{p}^{2}},ds{{p}^{3}},s{{p}^{3}}\]

    Correct Answer: C

    Solution :

                    \[[N{{H}_{3}}]\to \] Three bond pairs + one lone pair                 \[\to \]Tetrahedral \[\to s{{p}^{3}}\] hybridisation. \[{{[PtC{{l}_{4}}]}^{2-}}\to \] Four hybrid orbitals \[\to \] square planar                 \[\to ds{{p}^{2}}\] hybridisation. \[[PC{{l}_{5}}]\to \] Five hybrid orbitals                 \[\to \] trigonal bipyramid                 \[\to ds{{p}^{3}}\] hybridisation. \[{{[BC{{l}_{4}}]}^{-}}\to \] Four hybrid orbitals                 \[\to \] tetrahedral \[\to s{{p}^{3}}\] hybridisation.


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