$\begin{array}{1 1} \text{(a)(i) Granular zinc is obtained by pouring zinc in hot water & zinc dust by melting zinc & then atomising it with blast of air.(ii) In thermit process, oxides of metals are reduced by Zinc in which minimum amount of heat is evolved, metal is in the molten state & is allowed to fall between the broken parts of a machine.} \\ \text{(b) (i) Granular zinc is obtained by pouring molten zinc in Hot water & zinc dust by freezing zinc & then atomising it with blast of air.(ii) In thermit process, oxides of metals are reduced by aluminium in which minimum amount of heat is evolved, metal is in the Liquid state & is allowed to fall between the broken parts of a machine.} \\ \text{(c)(i) Granular zinc is obtained by pouring molten zinc in cold water & zinc dust by melting zinc & then atomising it with blast of air.(ii) In thermit process, oxides of metals are reduced by aluminium in which large amount of heat is evolved, metal is in the Solid state & is allowed to build the broken parts of a machine.} \\\text{(d) (i) Granular zinc is obtained by pouring molten zinc in cold water & zinc dust by melting zinc & then atomising it with blast of air.(ii) In thermit process, oxides of metals are reduced by aluminium in which large amount of heat is evolved, metal is in the molten state & is allowed to fall between the broken parts of a machine.}\end{array} $
