Q.
Which of the following reagent can be used to distinguish Cu2+;âCd2+ and Bi3+
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a
Dilute HCl
b
H2S gas in the presence of HCl
c
NH4OH+NH42SO4
d
K4FeCN6
answer is D.
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Detailed Solution
K4FeCN6âCu2+Cu2FeCN6Chocolate BrownK4FeCN6+Cd2+âCd2FeCN6+4K+1Greenish whiteK4FeCN6+Bi3+â No reaction
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