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Question
Chemistry
Gypsum on heating above 437 K gives
Q. Gypsum on heating above 437 K gives
57
200
NTA Abhyas
NTA Abhyas 2022
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A
C
a
S
O
4
.5
H
2
O
B
C
a
S
O
4
.
H
2
O
C
C
a
O
+
S
O
3
D
C
a
S
O
4
Solution:
Gypsum on heating above 437 K gives anhydrous calcium sulphate as follows
C
a
S
O
4
.2
H
2
O
→
390
K
C
a
S
O
4
.5
H
2
O
→
A
b
o
v
e
C
a
S
O
4