A) \[C{{H}_{3}}\]and \[{{C}_{2}}{{H}_{5}}\]
B) \[C{{H}_{3}}\]and\[HCH=C{{H}_{2}}\]
C) \[C{{H}_{3}}\]and\[CHO\]
D) \[CHO\]and\[CH=C{{H}_{2}}\]
Correct Answer: C
Solution :
: The molecular formula of chlorophyll a (blue green pigment) is\[{{C}_{55}}{{H}_{72}}{{O}_{5}}{{N}_{4}}Mg\]and that of chlorophyll b (yellow green pigment) is\[{{C}_{55}}{{H}_{70}}{{O}_{6}}{{N}_{4}}Mg\]. \[Chl\,a\] and\[Chl\,b\]differ in such way that in\[Chl\,b\]there is\[a-CHO\]group instead of\[a-C{{H}_{3}}\]group at the 3rd C atom in II pyrrol ring.
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