Multiple choice

Match the columns.

 
Column I (Complex) Column II (Central metal atom)
P. Chlorophyll 1. Iron
Q. Haemoglobin 2. Zinc
R. Vitamin B12 3. Magnesium
S. Carboxypeptidase A 4. Cobalt

  1. P - 1; Q - 2; R - 3; S - 4

  2. P - 2; Q - 3; R - 4; S - 1

  3. P - 3; Q - 1; R - 4; S - 2

  4. P - 3; Q - 2; R - 4; S - 1

  5. P - 4; Q - 1; R - 2; S - 3
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Chlorophylls are green pigments in plants and contain Mg. Haemoglobin is the red pigment or colour of blood and contains iron (Fe). Vitamin B12 is a cyanide ion substituted cobalamin derivative (cyanocobalamin) with the presence of cobalt mineral at 6 position. Carboxypeptidase A is a zinc metalloenzyme that breaks peptide linkages in the digestion of proteins.

 

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