Answer:
Conditions for geometrical isomerism: There are two necessary conditions for a compound to possess geometrical isomerism:
(i) It must contain a carbon-carbon double bond in the molecule.
(ii) Two unlike atoms or groups must be linked to each doubly bonded carbon atoms
Chlorophyll: green
Anthocyanins: red
Carotene: orange.
Sorry I couldn’t find the 4th one
Iodine (I) Plz mark brainliest. HOPE THIS HELPS!
It can be oxygen in only 1 atom. All elements on the periodic table can stand alone in one atom.
(I took a lucky guess, using some of my knowledge about elements )
