Chemistry - Complete d-block Question with Solution | TestHub

(1) ${\mathrm{V}}_2{\mathrm{O}}_5$-(iii) Oxidation of ${\mathrm{SO}}_2$ in the manufacture of ${\mathrm{H}}_2{\mathrm{SO}}_4$ by contact process. (2) ${\mathrm{TiCl}}_4+\mathrm{Al}{\left({\mathrm{CH}}_3\right)}_3-$ (Ziegler-Natta catalyst)- (iv) Polymerisation of ethylene. (3) ${\mathrm{PdCl}}_2-$ (i) Oxidation of ethyne to ethanal. (4) Nickel complexes-(ii) Polymerisation of alkynes. Thus, the correct match is (1) $\to$ (iii), (2) $\to$ (iv), (3) $\to$ (i), (4) $\to$ (ii)