Match List I with List II : List I (Transition metal/compound/complex) List II (Catalytic Role) A. V _2 O _5 I. Preparation of ammonia from N _2/ H _2 mixture B. Fe II. Polymerisation of alkynes C. PdCl _2 III. Preparation of H _2 SO _4 from SO _2 D. Ni complex IV. Oxidation of ethyne to ethanal Choose the correct answer from the options given below :
D. A-III, B-I, C-IV, D-II
V _2 O _5 is used as a catalyst in the Contact process for the oxidation of SO _2 to SO _3 during the preparation of H _2 SO _4. Thus, A matches with III. Finely divided Fe is used as a catalyst in the Haber process for the preparation of ammonia from N _2 and H _2 mixture. Thus, B matches with I. PdCl _2 is used as a catalyst in the Wacker process for the oxidation of ethene (referred to as ethyne in the given options) to ethanal. Thus, C matches with IV. Ni complexes are used as catalysts for the polymerisation of alkynes (e.g., polymerisation of ethyne to cyclooctatetraene). Thus, D matches with II. The correct matching is A-III, B-I, C-IV, D-II. Answer: A-III, B-I, C-IV, D-II
Related: Chemistry — d and f Block Elements · All PYQ Banks