What is the main difference between chlorophy | vedclass

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Question

(C) Chlorophyll '$a$' and chlorophyll '$b$' are the primary photosynthetic pigments.Chlorophyll '$a$' has the molecular formula $C_{55}H_{72}O_5N_4Mg$

Vedclass · Accepted Answer

Chlorophyll '$a$' contains a $-CH_3$ group,whereas chlorophyll '$b$' contains a $-CHO$ group.

Vedclass · Answer

(C) Chlorophyll '$a$' and chlorophyll '$b$' are the primary photosynthetic pigments.Chlorophyll '$a$' has the molecular formula $C_{55}H_{72}O_5N_4Mg$ and contains a methyl group $(-CH_3)$ at the third carbon position of the porphyrin ring.Chlorophyll '$b$' has the molecular formula $C_{55}H_{70}O_6N_4Mg$ and contains an aldehyde group $(-CHO)$ at the same position.Therefore,the presence of a $-CH_3$ group in chlorophyll '$a$' and a $-CHO$ group in chlorophyll '$b$' is the key structural difference.

What is the main difference between chlorophyll '$a$' and chlorophyll '$b$'?

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