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Solution


Q.

Match List I with List II

  List I (Substances)   List II (Element Present)
A. Ziegler catalyst I. Rhodium
B. Blood Pigment II. Cobalt
C. Wilkinson catalyst III. Iron
D. Vitamin B12 IV. Titanium

 

Choose the correct answer from the options given below:                       [2024]
1 A-II, B-IV, C-I, D-III  
2 A-IV, B-III, C-I, D-II  
3 A-II, B-III, C-IV, D-I  
4 A-III, B-II, C-IV, D-I  

Ans.

(2)

          (A) Ziegler-Natta catalyst is triethylaluminium and titanium tetrachloride.

          (B) Haemoglobin, the red pigment of blood is a coordination compound of iron.

          (C) Wilkinson catalyst is [(PPh3)3RhCl]

          (D) Vitamin B12, cyanocobalamine, the anti-pernicious anaemia factor, is a coordination compound of cobalt.