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Which of the following is a chelate ?...

Which of the following is a chelate ?

A

Cis-platin - a drug used in the treatment of cancer

B

Haemoglobin - a protein present in blood

C

Chlorophyll - a green plant pigment which acts as a photosensitiser in the synthesis of carbohydrates

D

Vitamin `B_(12)` - It is a cobalt (III) complex

Text Solution

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The correct Answer is:
B, C, D
Complex formation `Fe^(2+),Mg^(2+),Co^(3+)` ions coordinated metal ions.
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