Correct option: 4
Explanation: Empirical formula of chlorophyll -a is C55H72O5N4Mg. The chlorophyll molecule consists of a central magnesium atom surrounded by a nitrogen containing structure called as porphyrin ring.
Correct option: 4
Explanation: Empirical formula of chlorophyll -a is C55H72O5N4Mg. The chlorophyll molecule consists of a central magnesium atom surrounded by a nitrogen containing structure called as porphyrin ring.