Chemistry - Complete s-block Question with Solution | TestHub

Setting of plaster of Paris is exothermic process.
${\text{CaSO}}_{\text{4}}\cdot \frac{\text{1}}{\text{2}}{\text{H}}_{\text{2}}\text{O}\stackrel{{\text{H}}_{\text{2}}\text{O}}{\to }\underset{\text{Orthorhombic}}{{\text{CaSO}}_{\text{4}}\cdot {\text{2H}}_{\text{2}}\text{O}}\stackrel{\text{Heating}}{\to }\underset{\text{Gypsum}}{{\text{CaSO}}_{\text{4}}\cdot {\text{2H}}_{\text{2}}\text{O}}$