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Tardigrade
Question
Chemistry
Identify the correct statement.
Q. Identify the correct statement.
1536
199
Rajasthan PET
Rajasthan PET 2006
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A
Plaster of Paris is obtained by the partial oxidation of gypsum.
B
The percentage of plaster of calcium in gypsum is less than plaster of Paris.
C
Gypsum is obtained by the plaster of Paris on heating.
D
Plaster of Paris is obtained by the addition of water in gypsum.
Solution:
The percentage of plaster of calcium in gypsum
(
C
a
S
O
4
.2
H
2
O
)
is less than plaster of Paris
(
C
a
S
O
4
.
2
1
H
2
O
)
g
y
p
s
u
m
2
C
a
S
O
4
.2
H
2
O
Δ
pl
a
s
t
er
o
f
P
a
r
i
s
(
C
a
S
O
4
)
2
.
H
2
O
+
3
H
2
O