the molar ratio of chlorophyll and xanthophyll is

1. 4 : 1
2. 3 : 1
3. 1 : 1
4. 2 : 1

the molar ratio of chlorophyll to xanthophyll is 3:1.
Chlorophyll is a green pigment, present in all green plants and in cyanobacteria, which is responsible for the absorption of light to provide energy for photosynthesis.

Xanthophyll is a yellow or brown carotenoid plant pigment which causes the autumn colours of leaves.