A molecule whose charge distribution is not perfectly symmetrical is called 

The octet rule was first suggested by 

Among the following non -polar molecule is 

When compounds are formed from atoms there occurs a rearrangement of 

According to modern concept, oxidation is 

In water molecule, the H-O-H bond angle is 

All molecules exert weak attraction upon one another.  These attractions are called 

Gain of electrons  in a chemical reaction is known as 

Dipole- Dipole attraction is significant in

Ionic compounds have