Chemistry · Inorganic Chemistry
In the separation of Cd2+ from Cu2+, excess KCN is added forming soluble complexes, and then H2S gas is passed. Identify 'P' (the cyanido complex of cadmium) and 'Q' (the yellow precipitate formed):
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1P = Cd(H2O)42, Q = Cd(NO3)42
- 2P = Cd(NO3)2, Q = CdSO4
- 3P = CdS, Q = K2[Cd(CN)4]
- 4P = K2[Cd(CN)4], Q = CdS✓
Correct answer
P = K2[Cd(CN)4], Q = CdS
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