Explanation:

Hybridization is the process of mixing atomic orbitals of similar energies to form a new set of hybrid orbitals that have the same geometry as the molecule. The hybridization of a molecule determines its molecular shape.

a) sp3: NH3: Pyramidal
NH3 has a central nitrogen atom bonded to three hydrogen atoms. The hybridization of nitrogen is sp3, which means that the nitrogen atom has four hybrid orbitals. The three hybrid orbitals are arranged in a trigonal planar geometry, and the fourth hybrid orbital contains a lone pair of electrons. Therefore, the shape of NH3 is pyramidal.

b) sp3d: PCl5: Trigonal bipyramidal
PCl5 has a central phosphorus atom bonded to five chlorine atoms. The hybridization of phosphorus is sp3d, which means that the phosphorus atom has five hybrid orbitals. The five hybrid orbitals are arranged in a trigonal bipyramidal geometry. Therefore, the shape of PCl5 is trigonal bipyramidal.

c) sp3d2: XeF4: See-saw
XeF4 has a central xenon atom bonded to four fluorine atoms. The hybridization of xenon is sp3d2, which means that the xenon atom has six hybrid orbitals. The four hybrid orbitals are arranged in a square planar geometry, and the two remaining hybrid orbitals contain a lone pair of electrons. Therefore, the shape of XeF4 is see-saw.

d) sp2: AlCl3: Trigonal planar
AlCl3 has a central aluminum atom bonded to three chlorine atoms. The hybridization of aluminum is sp2, which means that the aluminum atom has three hybrid orbitals. The three hybrid orbitals are arranged in a trigonal planar geometry. Therefore, the shape of AlCl3 is trigonal planar.

Therefore, the matching that is not correct is sp3d2: XeF4: See-saw. The correct shape of XeF4 is square planar, not see-saw.

XeF₄ has 4 shared pairs and two lone pairs; sp³d² hybridisation; and square planar geometry.