HARD
11th CBSE
IMPORTANT
Earn 100

Sketch the shapes of molecular orbitals formed by the overlap of two s-orbitals. Name the orbitals formed in each case. 

Important Questions on Chemical Bonding and Molecular Structure

HARD
11th CBSE
IMPORTANT

Sketch the shapes of molecular orbitals formed by the overlap of side by side overlap of two p-orbitals. Name the orbitals formed.

HARD
11th CBSE
IMPORTANT

Sketch the shape of molecular orbital formed by the overlap of side on overlap of two p-orbitals. Name the orbitals formed.

HARD
11th CBSE
IMPORTANT
What do you understand by a molecular orbital (m.o.) ? What is the maximum number of electrons that can occupy a molecular orbital? How many m.o.'s of H2 originate from the hydrogen 1s atomic orbitals?
HARD
11th CBSE
IMPORTANT
What is meant by bonding and antibonding molecular orbitals? Give the number of electrons which occupy the bonding orbitals in H2+, H2 and He2+.
HARD
11th CBSE
IMPORTANT
What are the conditions for combination of atomic orbitals? Which species of H2,  H2+ and H2- are paramagnetic and why?
HARD
11th CBSE
IMPORTANT
Use the energy level diagram to show that N2 would be expected to have a triple bond, F2 a single bond and Ne2 no bond.
HARD
11th CBSE
IMPORTANT
What is meant by bond order? Calculate the bond order of He2+,O2 and N2 molecules.
HARD
11th CBSE
IMPORTANT
Calculate the bond order for H2+ ion. Is this ion expected to be paramagnetic or diamagnetic and why?