How to find number of stereoisomers in a large compound containing chiral centres ?.

What is denticity of NO and NO+ ligands ?

"NO" is a special ligand which can donate three electrons (3e) to the central metal atom in neutral state but in charge state (NO+) it can donate two electrons only to the central atoms.

What is water in oil emulsions ? explain with examples.

Water in oil emulsions: In this type of emulsions, water acts as dispersed phase and oil (organic solvent) acts as dispersion medium. Cold cream, butter etc, are examples of oil emulsions.

What are Oil in water emulsions ? explain with examples.

Oil in water emulsions: In this type of emulsions, oil acts as (organic solvent) dispersed phase and water acts as dispersion medium. Some examples of this type of emulsions are milk, vanishing cream, etc. In milk, liquid fat is dispersed in water.

How many 3c-2e bonds and 3c-4e are there in Al2(CH3) 6?

Al2(CH3)6 is dimer of Al(CH3)3 , which is dimerized by formation of bridge bond namely 3C - 2e bond (banana bond ) as well as 3C - 4e bond .