MCQ
The empirical formula of chlorophyll a is:
- ✓$\ce{{C}_{55} {H}_{72} {O}_{5} N_{4} {Mg}}$
- B$\ce{{C}_{55} {H}_{70} {O}_{5} N_{3} {Mg}}$
- C$\ce{{C}_{56} {H}_{72} {O}_{66} N_{4} {Mg}}$
- D$\ce{{C}_{55} {H}_{74} {O}_5 N_5 {Mg}}$
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