What reagent could NOT be used to separate I^- from OH^- when added to an aqueous solution containing both? A) AgNO_3(aq) B) Ca(NO₃)_2(aq) C) Cu(NO₃)_2(aq) D) Fe(NO₃)₂(aq)

Question

Quizplus · Accepted Answer

AgNO3 can only be used to separate Cl- from a mixture, as it forms a white precipitate of AgCl. It cannot be used to separate other anions, including sulfates and hydroxides, which are present in the given mixture. Therefore, option A is the best choice. Options B, C, and D involve other metal ions that can form insoluble sulfates or hydroxides, leading to the separation of the two anions in question.

What Reagent Could NOT Be Used to Separate I- from OH

What Reagent Could NOT Be Used to Separate I^- from OH