Match Column I with Column II Column I (Catalyst) Column II (Industrial Product) A. V2O5 i. High density polymer B. Zieglar-Natta ii. Polyacrylonitrile C. Peroxide iii. NH3 D. Finely divided Fe iv. H2SO4

A-iv; B-i; C-ii; D-iii A-iv; B-iii; C-ii; D-i A-iii; B-i; C-ii; D-iv A-iv; B-ii; C-i; D-iii

A-iv; B-i; C-ii; D-iii

V2​O5​ is used as a catalyst in contact process for H2​SO4​. Zieglar-Natta catalyst is used in the manufacturing of High Density Polyethene. Peroxide is used as a catalyst in the preparation of Polyacrylonitrile. Finely divided Fe is used as a catalyst in the preparation of NH3.