Question

Dead burnt plaster is

• A. $CaSO_{4}$
• B. $CaSO_{4} . \frac{1}{2} H_2O$
• C. $CaSO_{4} . H_2O$
• D. $CaSO_{4} . 2 H_2O$

Answer 1

Answer: (A)

$CaSO_{4}$

Answer 2

Anhydrous $CaSO_4$ is known as dead burnt plaster.