Discuss the orbital shapes of the following covalent molecules:
(i) HF (ii) H2O (iii) NH3.
Using the orbital overlap concept, explain the formation of:
(i) O2 molecule (ii) N2 molecule.
What is coordinate or dative bond? Explain the formation of the bond with some examples.
What are physical important characteristics of coordinate compounds?
The physical important characteristics for coordinate compounds are:
(i) Physical state: They may be gaseous, liquids or solids.
(ii) Melting and boiling points: They generally have low melting and boiling points. However, their melting and boiling points are relatively more than the covalent compounds.
(iii) Conductivity: Generally, they are poor conductors of electricity but some of them are good conductors also.
(iv) Solubility: Generally, they are insoluble in water but soluble in organic solvents. However, some of them are soluble in water.
(v) Isomerism: They exhibit stereoisomerism due to rigid and directional nature of the coordinate bond.