Identify the pair of species having same hybridisation for central atom, but possess different geometry.

Options

A. `CH_(4),overset(+)(N)H_(4)`
B. `C_(2)H_(2), BeCl_(2)`
C. `PF_(5), IF_(5)`
D. `PC1_(5), ClF_(3)`

Answer

D

Explanation

(a) (i) `CH_(4)-` Hybridisation `-sp^(3)`
`" "`Geometry - Tetrahedral
`" (ii) "overset(+)(N)H_(4)-` Hybridisation `-sp^(3)`
`" "` Geometry - Tetrahedral
(b) (i) `C_(2)H_(2)-` Hybridisation `-sp`
`" "` Geometry - Linear
`" (ii) "BeCl_(2)-` Hybridisation - sp
`" "`Geometry - Linear
(c) (i) `PE_(5)-` Hybridisation `-sp^(3)d`
`" "` Geometry - Trigonal bipyramidal
`" (ii) " IE_(5)-` Hybridisation `-sp^(3)d^(2)`
`" "`Geometry - Square pyramidal
(d) (i) `PCl_(5)-` Hybridisation `-sp^(3)d`
`" "` Geometry - Trigonal bipyramidal
`" (ii) " ClF_(3)-` Hybridisation `-sp^(3)d`
`" "` Geometry - T-shape
So, `PCl_(5) " and "ClF_(3)` having same hybridisation, but possess different geometry.