The pair(s) of ions where both the ions are precipitated upon passing H2S gas in presence of dilute HCl, is(are)

Engineering

Chemistry

Test of Cations and Anions

Question

The pair(s) of ions where both the ions are precipitated upon passing H₂S gas in presence of dilute HCl, is(are)

Cu²⁺, Pb²⁺

Hg²⁺, Bi³⁺

Ba²⁺, Zn²⁺

Bi³⁺, Fe³⁺

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Cu²⁺, Pb²⁺, Hg²⁺, Bi³⁺ give ppt with H₂S in presence of dilute HCl.