Question

Question 1 : Increase in melting point as a result of increase in molecular weight is due to increase in ___________.
Hydrogen bonding
Dipole-dipole interactions
electrostatic forces
London forces

Question 2 : In ionic compounds, the positive and negative ions are held together by all these EXCEPT ________.
Hydrogen bonding
London forces
Dipole-dipole interactions
electrostatic forces

Question 3 : A benzene ring is a ________ system.
non conjugation
Conjugation
Hyperconjugation
None

Question 4 : All these affect boiling points except __________.
Molecular structure
London forces
Shape of molecule
Polarity

Question 5 : A chief source of benzene and its derivatives is __________.
Basalt
Limestone
Coaltar
Bitumen

Answer 1

London forces.
London forces.
Conjugation
Shape of molecule
Coaltar.