A) One pyrrole nucleus with one hydrogen
B) One pyrrole nucleus with two hydrogen
C) One pyrrole nucleus with three hydrogen
D) One pyrrole nucleus with four hydrogen
Correct Answer: B
Solution :
Bacteriochlorophyll is photosynthetic pigment in purple and green-sulphur bacteria while chlorophyll \['a'\]is photosynthetic pigment in green plants. Bacteriochlorophyll differs from chlorophyll \['a'\] in having an acetyl group in place of vinyl group of chlorophyll \['a'\]and saturation of one double bond of porphyrin ring of chlorophyll\['a'\] which in turn, adds two additional hydrogen atoms to the bacteriochlorophyll.
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