Main axis of diatomic molecule is z. The orbitals px and py overlap to form
-molecular orbital
σ-molecular orbital
δ-molecular orbital
No bond is formed
Using MOT, compare species and choose the inncorrect option.
have higher bond order than
is less stable
is diamagnetic while is paramagnetic
Both are paramagnetic
Which of the following structure of a molecule is expected to have three bond pairs and one lone pair of electrons?
Octahedral
Trigonal planar
Pyramidal
Tetrahedral
The following salt shows maximum covalent character:
AlCl3
MgCl2
CsCl
LaCl3
A.
AlCl3
According to Fajan's rule, as the charge on cation increase its size decreases. As a result its tendency to polarize anion increases. This brings more and more covalent character to electrovalent compounds.
Among AlCl3, LaCl3, MgCl2 ans CsCl, size of Al3+ of (AlCl3) is smallest.
Al3+ polarises anion to highest extent and has maximum covalent character.
The trigonal bipyramidal geometry results from the hybridisation :
dsp3 or sp3d
dsp2 or sp2d
d2sp3 or sp3d2
d3p2 or d2p3