Water present in the mobile phase gets absorbed by the paper which then forms the stationary phase.

Water present in the pores of the paper forms the stationary phase.

Paper sheet forms the stationary phase.

Paper and water present in its pores together form the stationary phase.

1.5

2

3

4.5

It has a fairly high melting point.

It is associated with more than one $\mathrm{pK}_{\mathrm{a}}$ values.

It has high solubility in benzene.

It is a crystalline solid.

$\mathrm{CaCO}_{3} \cdot \mathrm{MgCO}_{3} \stackrel{\Delta}{\longrightarrow} \mathrm{CaO}+\mathrm{MgO}+2 \mathrm{CO}_{2}$

$2 \mathrm{PbS}+3 \mathrm{O}_{2} \stackrel{\Delta}{\longrightarrow} 2 \mathrm{PbO}+2 \mathrm{SO}_{2}$

$\mathrm{CaCO}_{3} \stackrel{\Delta}{\longrightarrow} \mathrm{CaO}+\mathrm{CO}_{2}$

$\mathrm{Fe}_{2} \mathrm{O}_{3} \cdot \mathrm{xH}_{2} \mathrm{O} \stackrel{\Delta}{\longrightarrow} \mathrm{Fe}_{2} \mathrm{O}_{3}+\mathrm{xH}_{2} \mathrm{O}$