Which of the following salts becomes Plaster | vedclass

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Question

(B) The correct answer is $(B)$.When gypsum $(CaSO_4 \cdot 2H_2O)$ is heated to a temperature of $393 \, K$ $(120 \, ^\circ C)$,it loses three-fourths

Vedclass · Accepted Answer

$CaSO_4$

Vedclass · Answer

(B) The correct answer is $(B)$.When gypsum $(CaSO_4 \cdot 2H_2O)$ is heated to a temperature of $393 \, K$ $(120 \, ^\circ C)$,it loses three-fourths of its water of crystallization to form Plaster of Paris $(CaSO_4 \cdot \frac{1}{2}H_2O)$.The reaction is:$CaSO_4 \cdot 2H_2O \xrightarrow{393 \, K} CaSO_4 \cdot \frac{1}{2}H_2O + \frac{3}{2}H_2O$

Which of the following salts becomes Plaster of Paris on being appropriately heated?

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