Coordination compounds have great importance in biological systems. In this context which of the following statements is incorrect? - Chemistry MCQ AIEEE 2004 2026 | ExamTest.live | ExamTest.live

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Coordination compounds have great importance in biological systems. In this context which of the following statements is incorrect?

A $Chlorophylls are green pigments in plants and contain calcium$
B $Carboxypeptidase - A is an enzyme and contains zinc$
C $Cyanocobalamin is B_{12} and contains cobalt$
D $Haemoglobin is the red pigment of blood and contains iron$

Solution & Step-by-step Explanation

Chlorophyll is a complex of Magnesium (Mg), not Calcium (Ca).Zinc is present in Carboxypeptidase-A.Cobalt is the central metal in Vitamin B_{12} .Iron (in the form of Heme) is the center of Haemoglobin. Statement A is incorrect.

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Coordination compounds have great importance in biological systems. In this context which of the following statements is incorrect?

A

Chlorophylls are green pigments in plants and contain calcium

B

Carboxypeptidase - A is an enzyme and contains zinc

C

Cyanocobalamin is B_{12} and contains cobalt

D

Haemoglobin is the red pigment of blood and contains iron

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