Intermolecular Forces

Question 1

Type of intermolcular forces

Answer 1

1)Van dar waal’s interaction
-London dispersion force
-Dipole dipole force
-Dipole induced dipole force
2)Hydrogen bond

Question 2

London dispersion force is also known as

Answer 2

Instantaneous dipole-induced dipole force

Question 3

Instantaneous dipone happen

Answer 3

more of the electrons cloud at the one end of the atom than the molecule or atom has an instantaneous dipole (partial negative & partial positive end)

Question 4

London dispersion force is occured in

Answer 4

only force b/w non polar molecules
eg.Cl2,H2,O2

Question 5

London dispersion force only last an instant.True or False?

Answer 5

True

Question 6

Weakest intermolecular force

Answer 6

London dispersion force

*force increase with increase molecular force

Question 7

Dipole dipole interaction occur in

Answer 7

Polar molecules (with electronegativity difference)

eg.HCl

Question 8

Dipole of dipole-dipole interaction is

Answer 8

permanent dipole (bcus of the electronegativity difference)

Question 9

Dipole induced dipole force occur between

Answer 9

Polar & non polar molecules
eg.HCl & Cl2

permenant dipole induces the non polar molcules to happen a dipole

Question 10

Hydrogen bond occur b/w

Answer 10

H-O,N,F molecules

*O,N,F- very electronegative than H
so electron pull away from H bcus of large electronegativity difference

Question 11

Strongest intermolecular force

Answer 11

Hydrogen bond

Question 12

Molecule with H-O,N,F have

Answer 12

permanent dipole bcus of the large electronegative difference

Question 13

Weakest to strongest intermolecular forces

Answer 13

LDF<Dipole-dipole<Dipole-induced dipole<Hydrogen bond