Question

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The weakest attractive force among these is: Question 20 options: A) dipole-dipole force B) hydrogen bonding...

The weakest attractive force among these is:
Question 20 options:

A)

dipole-dipole force

B)

hydrogen bonding

C)

ion-dipole force

D)

London force
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Solutions

Expert Solution

A)

Dipole-dipole force: this type of bond is formed between molecules that are polar. These molecules have atoms that are very electronegative. They attract the electrons towards themselves so that, two extremes are produced in the molecule, one positive and other negative. These opposite extremes attract each other forming the bond.

B)

Hydrogen bonding: this is a special dipole-dipole force that is formed between hydrogens atoms and very electronegative atoms (F,O or N). This type of bond is stronger than the common dipole-dipole bond.

C)

Ion-dipole force: this type of force is produced between an ion and a dipole. This type of interaction happens in solutions formed by ions and polar solvents. This interaction is very strong.

D)

London force: this type of force is found between nonpolar molecules where an temporary dipole is produced by the electron movement. This is the weakest intermolecular force.

Correct answer D.


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