Slaked lime on reaction with ammonium chloride gives 

Different steps involved in the mechanism of preparation of sodium hydroxide by the Castner process are given below. Arrange them in the correct sequence.

$$\begin{gathered} \left(1\right) 2{\mathrm{Cl}}^{-}\to {\mathrm{Cl}}_2+2{\mathrm{e}}^{-} \\ \left(2\right) {\mathrm{Na}}_2\mathrm{Hg}-2{\mathrm{e}}^{-}\to 2{\mathrm{Na}}^{+}+\mathrm{Hg} \\ \left(3\right) 2{\mathrm{H}}_2\mathrm{O}+2{\mathrm{e}}^{-}\to {\mathrm{H}}_2+2{\mathrm{OH}}^{-} \\ \left(4\right) \mathrm{Hg}+2{\mathrm{Na}}^{+}+2{\mathrm{e}}^{-}\to {\mathrm{Na}}_2\mathrm{Hg} \\ \left(5\right) 2\mathrm{NaCl}\to 2{\mathrm{Na}}^{+}+2{\mathrm{Cl}}^{-} \\ \left(6\right) 2{\mathrm{Na}}^{+}+2{\mathrm{OH}}^{-}\to 2\mathrm{NaOH} \end{gathered}$$

The steps involved in the manufacture of glass are given below. Arrange them in the correct sequence. 

$\left(1\right)$ moderate cooling 

$\left(2\right)$ addition of cullet 

$\left(3\right)$ formation of respective silicates 

$\left(4\right)$ preparation of fine powder of raw materials 

$\left(5\right)$ heating of cullet at about $1600 \mathrm{K}$ to $1700 \mathrm{K}$  

Different processes involved in the manufacture of pottery or ceramic materials are given below. Arrange them in a proper sequence. 

($1$) change in the physical and chemical properties of the substances 

($2$) heating to a suitable high temperature

($3$) drying of the mixture 

($4$) preparation of mixture by adding water to raw materials