Question

Assertion : Plaster of Paris should be stored in
moisture proof containers.
Reason : Plaster of Paris on coming in contact of
moisture, absorbs water and reacts chemically to form
hydrated calcium sulphate, which sets to form a hard
mass.

Answer 1

Both assertion and reason are correct and reason is the correct explanation of assertion .

Answer 2

$\mathfrak{Answer}$

option A

both A and R are correct and R is the right explanation for A