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Tardigrade
Question
Chemistry
Copper sulphate solution reacts with KCN to give
Q. Copper sulphate solution reacts with
K
CN
to give
2002
205
The d-and f-Block Elements
Report Error
A
C
u
(
CN
)
2
B
C
u
CN
C
K
2
[
C
u
(
CN
)
4
]
D
K
3
[
C
u
(
CN
)
4
]
Solution:
Copper sulphate when reacts with
K
CN
first gives precipitate of cupric cyanide which reduces into
C
u
2
C
N
2
and dissolves in excess of
K
CN
to give soluble
K
3
[
C
u
(
CN
)
4
]
complex salt.
