Answer: linear .
Explanation:
As we are given that a molecule or ion is described as sp hybridized,
Linear is a molecular shape that results when there are 2 bonding pairs present on the central atom in the molecule.
a) Octahedral : The number of electron pairs are 6 that means the hybridization will be [tex]sp^3d^2[/tex]
b) trigonal planar : The number of electron pairs are 3 that means the hybridization will be [tex]sp^2[/tex]
c) linear : The number of electron pairs are 2 that means the hybridization will be [tex]sp[/tex]
d) trigonal bipyramidal: The number of electron pairs are 5 that means the hybridization will be [tex]sp^3d[/tex]
e) tetrahedral: The number of electron pairs are 4 that means the hybridization will be [tex]sp^3[/tex]
