S Block Elements Question 195
Question: Plaster of paris is used
[Pb. CET 2000; CPMT 2000]
Options:
A) In surgery and dentistry
B) As a white wash
C) As a constituent of tooth paste
D) For the preparation of RCC
Show Answer
Answer:
Correct Answer: A
Solution:
Plaster of paris $ [{{(CaSO_4)}_2}H_2O] $ is used in surgery for setting of bones, dentistry and manufacturing of statues. It is prepared as follows, $ 2CaSO_4.2H_2O\xrightarrow{125{}^\circ C}\underset{\text{Plaster of paris}}{\mathop{{{(CaSO_4)}_2}.H_2O}}+3H_2O $
BETA
