A) \[P{{b}^{2+}}\]
B) \[H{{g}^{2+}}\]
C) \[C{{u}^{2+}}\]
D) \[C{{o}^{2+}}\]
Correct Answer: B
Solution :
[b] \[H{{g}^{2+}}+{{I}^{-}}\to Hg{{I}_{2}}\](Scarlet red ppt.) \[Hg{{I}_{2}}+2{{I}^{-}}\to {{[Hg{{I}_{4}}]}^{2-}}\](Soluble) \[H{{g}^{2+}}+Co{{(SCN)}_{2}}\to Co[Hg{{(SCN)}_{4}}]\] (Deep blue crystalline ppt.)You need to login to perform this action.
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