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Chemistry
CuSO4 decolourises on addition of KCN, the product is
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Q. $CuSO_4$ decolourises on addition of $KCN$, the product is
IIT JEE
IIT JEE 2006
Organic Chemistry – Some Basic Principles and Techniques
A
$[Cu(CN)_4]^{2-}$
29%
B
$Cu^{2+}$ get reduced to form $[Cu(CN)_4]^{3-}$
20%
C
$Cu(CN)_2$
10%
D
$CuCN$
40%
Solution:
