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Byju's Answer
Standard IX
Chemistry
Anaesthetics
Bleaching pow...
Question
Bleaching powder is prepared by passing _______ gas over dry slaked lime.
A
hydrogen
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B
nitrogen
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C
oxygen
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D
chlorine
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Solution
The correct option is
D
chlorine
Bleaching powder
C
a
(
O
C
l
)
2
is formed by passing chlorine gas over dry slaked lime at 400
°
C.
2
C
a
(
O
H
)
2
(
l
)
+
2
C
l
2
(
g
)
→
C
a
(
O
C
l
)
2
(
s
)
+
2
H
2
O
(
l
)
+
C
a
(
C
l
)
2
(
a
q
)
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Bleaching powder is prepared by passing _______ gas over dry slaked lime.