A) \[{{C}_{55}}{{H}_{72}}{{O}_{5}}{{N}_{5}}Mg\]
B) \[{{C}_{55}}{{H}_{72}}{{O}_{5}}{{N}_{4}}Mg\]
C) \[{{C}_{55}}{{H}_{70}}{{O}_{6}}Mg\]
D) \[{{C}_{55}}{{H}_{70}}{{O}_{5}}{{N}_{5}}Mg\]
Correct Answer: C
Solution :
The chemical formula of chlorophyll b is \[{{C}_{55}}{{H}_{70}}{{O}_{6}}{{N}_{4}}\]Mg. In chlorophyll b, there is CHO group (aldehyde) at three carbon of porphyrin ring while in chlorophyll \[a-C{{H}_{3}}\](Methyl) group is present.
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