Asked by Anonymous

Why do group I cations form precipitates when mixed with HCL?

Answered by DrBob222
I don't know that they do. Group I cations of Li, Na, K, Rb, and Cs do not form ppts with HCl. Group IB metal of Ag forms a ppt with HCl (of AgCl) but that's the only one. You may be thinking of some other group I.
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