Give molecular orbital diagram of `O_2` molecule and indicate its magnetic behaviour.

Give the molecular orbital diagram for F2 molecule.

Give the molecular orbital diagram of O_2 molecule and calculate its bond order.

With the help of molecular orbital theory, draw the molecular orbital energy level diagram for N_(2)^(+) ion molecule. Also calculate its bond order and predictits magnetic behaviour.

Use molecular orbital theory to explain why to Be_2 molecule does not exist.

Calculate bond order in O_2 molecule.

Compare the relative stability of the following species and indicate their magnetic properties O_(2), O_(2)^(+), O_(2)^(-) (superoxide), O_(2)^(2-) (peroxide).

Give the formula of the following coordination entities - Ni^(2+) ion is bound to two water molecules and two oxalate ions. Write the name and magnetic behaviour of the above coordination entities. (At. nos, Co = 27, Ni = 28)

Give a labelled diagram of the eye and write the function of its main parts.

Give the boundary surface diagrams of p-orbitals.