Question

Conjugated systems tend to absorb in the visible region because...
(a) electrons are coloured
(b) overlapping pi orbitals increase the energy gap between orbitals
(c) overlapping pi orbitals reduce the energy gap between orbitals 100%
transmittance occur​

Answer 1

Answer:

overlapping pi orbitals increase the energy gap between orbitals

Explanation:

For molecules having conjugated systems of electrons, the ground states and excited states of the electrons are closer in energy than for nonconjugated systems. This means that lower energy light is needed to excite electrons in conjugated systems, which means that lower energy light is absorbed by conjugated systems.