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no
No, potassium chloride contains potassium chloride.
Potassium chloride
Potassium chloride is react with AgNO3 , the chloride ion subtract from potassium chloride to form silver chloride precipitate and potassium nirate.
KCl + AgNO3 → KNO3 + AgCl↓
No, reacting zinc with hydrogen chloride will yield zinc chloride and hydrogen gas.
Potassium chloride can be prepared by reacting potassium with hydrogen chloride or (more safely) potassium hydroxide with hydrogen chloride.