Which Aspect of Pigments Makes Them Efficient in Capturing Light

Question

Which aspect of pigments makes them efficient in capturing light?
A) They all share a region where hydrogen atoms are covalently bonded to each other with single bonds.
B) They all share a region where hydrogen atoms are covalently bonded to each other with alternating single and double bonds.
C) They all share a region where carbon atoms are covalently bonded to each other with alternating single and double bonds.
D) They all share a region where carbon atoms are covalently bonded to each other with double bonds.

Accepted Answer

Pigments are efficient in capturing light due to the presence of a region where carbon atoms are covalently bonded to each other with alternating single and double bonds. This structure allows for the delocalization of electrons, which is crucial for the absorption of light.