The d and f-Block Elements: NEET 2026

Easy· General Properties of Transition Elements (D-Block) (Catalytic Properties)· +4 / −1

Match List I with List II. List I (Transition metal/compound/complex): A.

\mathrm{V_2O_5}

, B. Fe, C.

\mathrm{PdCl_2}

, D. Ni complex List II (Catalytic Role): I. Preparation of ammonia from

\mathrm{N_2/H_2}

mixture, II. Polymerisation of alkynes, III. Preparation of

\mathrm{H_2SO_4}

and

\mathrm{SO_2}

, IV. Oxidation of ethyne to ethanal Choose the correct answer from the options given below.

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