1.

The type of hybrid orbitals used by chlorine atom in `ClO_(2)^(-)` is :A. `sp^(3)`B. `sp^(2)`C. spD. None of these

Answer» Correct Answer - A
`H=1/2 (B+M-C+A)` where H=No. of orbitals involved in hybridised (viz. `sp^(2),sp^(3),sp^(3)d,sp^(3)d^(2)`) can be ascertained.
V=no. of electrons in valence shell of the central atom, M =no. of monovalent atoms, C=charnge on cation, A=charge on ation,
`rArrH=1/2 (7+1)=4` or `sp^(3)` hybridisation as 4 orbitals are involved.


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