The correct order of increasing s character ( in percentage ) in the hybrid orbitals in below molecules `//` ions is ( assume all hybrid orbitals are exactly equivalent) `:`
`underset(I)(CO_(3)^(2-))` `underset(II)(XeF_(4))` `underset(III)(I_(3)^(-))` `underset(IV)(NCl_(3))` `underset(V)(BeCl_(2)(g))`

Options

A. II lt III lt IV lt I lt V
B. II lt IV lt III lt V lt I
C. III lt II lt I lt V lt IV
D. II lt IV lt III lt I lt V

Answer

A

Explanation

`underset(sp^(2))(CO_(3)^(2-))" "underset(sp^(3)d^(2))(XeF_(4))" "underset(sp^(2)d)(I_(3)^(-))" "underset(sp^(3))(NCl_(3))" "underset(sp)(BeCl_(2))`