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Q.

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

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a

Cyanocobalamin is B12 and contains cobalt.

b

Chlorophylls are green pigments in plants and contain calcium.

c

Carboxypeptidase-A is an enzyme and contains zinc.

d

Haemoglobin is the red pigment of blood and contains iron.

answer is A.

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Detailed Solution

Chlorophylls are green pigments in plants and contain magnesium.
They are useful during photosynthesis to store energy in the form of glucose from carbon dioxide and water in presence of sunlight.

Chlorophyll is green pigment in plants and contains magnesium.

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