How many of the following statements is (are) true about resonance.
a) Resonance is an intramolecular process.
b) Resonance involves delocalization of both s and p electrons.
c) Resonance involves delocalization of π electrons only.
d) Resonance decreases potential energy of a molecule.
e) Resonance has no effect on the potential energy of a molecule.
f) Resonance is the only way to increase molecular stability.
g) Resonance is not the only way to increase molecular stability.
h) Any resonating molecule is always more stable than any non resonating molecule.
i) The canonical structure explains all features of a molecule.
j) The resonance hybrid explains all features of a molecule.
k) Resonating structures are real and resonance hybrid is imaginary.
l) Resonance hybrid is real and resonating structures are imaginary.
m) Resonance hybrid is always more stable than all canonical structures.