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Question
Chemistry
Which cleansing agent gets precipitated in hard water?
Q. Which cleansing agent gets precipitated in hard water?
4439
227
KCET
KCET 2019
Chemistry in Everyday Life
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A
Cetyl trimethyl ammonium bromide
16%
B
Sodium dodecyl benzene sulphonate
18%
C
Sodium lauryl sulphate
27%
D
Sodium stearate
39%
Solution:
2
C
17
H
35
COON
a
+
C
a
C
I
2
→
2
N
a
C
I
+
insoluble calcium stearate (soap)
(
C
17
H
35
COO
)
2
C
a