A solution of a salt X reacts with AgNO3 solution to give white precipitate which dissolves in excess aqueous ammonia. X contains

Assessment: WAEC SSCE - Chemistry - 2007 (Objective) Subject: Chemistry

Question 1 Report

A solution of a salt X reacts with AgNO3 solution to give white precipitate which dissolves in excess aqueous ammonia. X contains
Answer Details
The white precipitate formed by the reaction of the salt X with AgNO3 indicates the presence of chloride ions, Cl-. The fact that the precipitate dissolves in excess aqueous ammonia confirms the presence of Cl- since silver chloride, AgCl, is soluble in excess aqueous ammonia. Therefore, the salt X contains chloride ions, Cl-.
Read lesson note on Solubility Of Substances (Ghana Only) (WAEC)
Read lesson note on Acids, Bases And Salts (JAMB)
Read lesson note on Acids, Bases And Salts (Ghana Only) (WAEC)
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