Grade 11Physical Chemistry
what is ion-dipole force?why it is not considered as van der waals force?
what is ion-dipole force?why it is not considered as van der waals force?
1 Answer
Umakant biswal
@ ajay
1- Ion-dipole forces are generated between polar water molecules and a sodium ion. The oxygen atom in the water molecule has a slight negative charge and is attracted to the positive sodium ion.
2- These intermolecular ion-dipole forces are much weaker than covalent or ionic bonds.
its not considered as van der waals force as van der waals force will come into concept when the molecules will be uncharged , but in this case 1 of the molecule will be slightly -ve charge as mentioned earlier .
1- Ion-dipole forces are generated between polar water molecules and a sodium ion. The oxygen atom in the water molecule has a slight negative charge and is attracted to the positive sodium ion.
2- These intermolecular ion-dipole forces are much weaker than covalent or ionic bonds.
its not considered as van der waals force as van der waals force will come into concept when the molecules will be uncharged , but in this case 1 of the molecule will be slightly -ve charge as mentioned earlier .
HOPE IT CLEARS YOU
ALL THE BEST ..
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