JEE Main · 2019 · 11 Jan 2019 · Shift 1 · Coordination Compounds

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Match the metal column I with the coordination compounds/enzymes column II

Column I
Metals
a. Co
b. Zn
c. Rh
d. Mg

Column II
Coordination compounds/enzymes
i. Wilkinson catalyst
ii. Chlorophyll
iii. Vitamin

B_{12}

iv. Carbonic anhydrase

Answer: A → III, B → IV, C → I, D → II

Solution

Each metal sits at the heart of one of these species. Cobalt is the central atom of vitamin

B X_{12}

, cradled in its corrin ring. Zinc is the metal at the active site of carbonic anhydrase. Rhodium is the metal of Wilkinson's catalyst,

RhCl (PPh X_{3}) X_{3}

. Magnesium is the ion centred in the chlorophyll porphyrin. Hence cobalt with vitamin

B X_{12}

, zinc with carbonic anhydrase, rhodium with Wilkinson's catalyst and magnesium with chlorophyll.

JEE Main · 2019 · 11 Jan 2019 · Shift 1 · Match the columns

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