State and explain Hund's rule of maximum multiplicity.

Dual nature of matter was proposed by Louis-de-Broglie. b) State Paul's exclusion principle and Hund's rule of maximum multiplicity.

The modern theory of aromaticity was advanced by E. Huckel : Explain Huckel's rule of aromaticity.

State and explain Kirchoff.s junction rule of an electrical network.

State and explain law of multiple proportions with example.

If the subsidiary quantum number of sub energy level is 4, the maximum and minimum values of the spin multiplicities are

State and explain the work done in the following situation : A man spending his energy by pushing on a concrete wall.