Consider the following reduction processes:I. Fe2O3+C→FeII. Al2O3+C→AlIII. PbO+C→PbIV. Ca3(PO4)2+C+SiO2→PThe correct processe(s) is/are:
Which of the following process / processes release heat ? (i) condensation (ii) vaporisation (iii) freezing (iv) melting
(a) only (i) (b) only (iv) (c) (i) and (iii) (d) (ii) and (iv)
Question 4 Which of the following are exothermic processes?
(i) Reaction of water with quicklime (ii) Dilution of an acid (iii) Evaporation of water (iv) Sublimation of camphor (crystals) (a) (i) and (ii) (b) (ii) and (iii) (c) (i) and (iv) (d) (iii) and (iv)
Pick out the correct element from the following:
(i) C (ii) Si (iii) Pb (iv) Ge
Match the catalysts to the correct processes:
Catalyst Process
(A) TiCl3 (i) Wacker process
(B) PdCl2 (ii) Ziegler - Natta polymerization
(C) CuCl2 (iii) Contact process
(D) V2O5 (iv) Deacon's process