$A$ pair of substances which gives the same products on reaction with water is

Which of the following groups of elements have chemical properties that are most similar?

Which one of the following alkaline earth metal sulphates has its hydration enthalpy greater than its lattice enthalpy?

Plaster of Paris when mixed with the correct amount of water sets into a solid mass due to the formation of

An alkaline earth metal $(M)$ gives a salt with chlorine,which is insoluble in water at room temperature but soluble in boiling water. It also forms an insoluble sulphate whose mixture with a sulphide of a transition metal is called 'lithopone' - a white pigment. Metal $M$ is

Give two uses of Plaster of Paris.