$\begin{array}{1 1} \text{(a) (i) Evaporation (ii) Calcination } \\ \text{(b)(i) Direct Redox Reaction (ii) Indirect Redox Reaction }\\ \text{(c) (i) Oxidation (ii) Reduction} \\\text{(d) (i) Electrophilic (ii) Nucleophillic}\end{array} $
