Describe the general characteristics of pteridophy.

Describe the general characteristics of transition elements with special reference to the following : (i) Formation of coloured salts . (ii) Variable oxidation states

Describe the general characteristics of gymnosperms.

Describe the general characteristics of the equilibria in the physical systems.

Describe The general characteristics of transition elements with special reference to the following: Catalyst

What are alkali metals ? Describe their general characteristics.

Write the general characteristics of Euglenoids.

Give the general characteristics of metals.