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JEEMAIN and NEET
>>
Chemistry
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Nitrogen
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Q)
Deep blue colour formed by addition of copper (II) sulphate solution to ethyl amine is due to formation of
(
a
)
(
N
H
4
)
2
S
O
4
(
b
)
C
u
(
O
H
)
2
(
c
)
f
r
e
e
C
u
+
2
i
o
n
s
i
n
s
o
l
u
t
i
o
n
(
d
)
[
C
u
(
C
2
H
5
N
H
2
)
4
]
2
+
i
o
n
s
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