Which of the following biomolecules contain non-transition metal ion?
A
Vitamin B12
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B
Chlorophyll
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C
Haemoglobin
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D
Insulin
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Solution
The correct option is A Chlorophyll
Chlorophyll contains a non-transition metal ion. Chlorophyll is magnesium porphyrin complex. It is a green pigment present in plant leaves and is used in photosynthesis.